diff --git a/jenkins_jobs/modules/scm.py b/jenkins_jobs/modules/scm.py
index fff5a4f75..59adf91f3 100644
--- a/jenkins_jobs/modules/scm.py
+++ b/jenkins_jobs/modules/scm.py
@@ -72,6 +72,9 @@ remoteName/\*')
     :arg bool shallow-clone: Perform shallow clone (default false)
     :arg bool prune: Prune remote branches (default false)
     :arg bool clean: Clean after checkout (default false)
+
+        .. deprecated:: 1.1.1. Please use clean extension format.
+
     :arg bool fastpoll: Use fast remote polling (default false)
     :arg bool disable-submodules: Disable submodules (default false)
 
@@ -111,6 +114,11 @@ remoteName/\*')
                 * **branch** (`string`) - name of the branch to create
                     create changelog against (default 'master')
 
+        :arg dict clean:
+            :clean:
+                * **after** (`bool`) - Clean the workspace after checkout
+                * **before** (`bool`) - Clean the workspace before checkout
+
         :arg dict submodule:
             :submodule:
                 * **disable** (`bool`) - By disabling support for submodules
@@ -162,7 +170,6 @@ remoteName/\*')
         ("recursive-submodules", 'recursiveSubmodules', False),
         (None, 'doGenerateSubmoduleConfigurations', False),
         ("use-author", 'authorOrCommitter', False),
-        ("clean", 'clean', False),
         ("wipe-workspace", 'wipeOutWorkspace', True),
         ("prune", 'pruneBranches', False),
         ("fastpoll", 'remotePoll', False),
@@ -279,6 +286,24 @@ remoteName/\*')
         change_branch = data['changelog-against'].get('branch', 'master')
         XML.SubElement(opts, 'compareRemote').text = change_remote
         XML.SubElement(opts, 'compareTarget').text = change_branch
+    if 'clean' in data:
+        # Keep support for old format 'clean' configuration by checking
+        # if 'clean' is boolean. Else we're using the new extensions style.
+        if isinstance(data['clean'], bool):
+            clean_after = data['clean']
+            clean_before = False
+            logger.warn("'clean: bool' configuration format is deprecated, "
+                        "please use the extension style format to configure "
+                        "this option.")
+        else:
+            clean_after = data['clean'].get('after', False)
+            clean_before = data['clean'].get('before', False)
+        if clean_after:
+            ext_name = 'hudson.plugins.git.extensions.impl.CleanCheckout'
+            ext = XML.SubElement(exts_node, ext_name)
+        if clean_before:
+            ext_name = 'hudson.plugins.git.extensions.impl.CleanBeforeCheckout'
+            ext = XML.SubElement(exts_node, ext_name)
     if 'submodule' in data:
         ext_name = 'hudson.plugins.git.extensions.impl.SubmoduleOption'
         ext = XML.SubElement(exts_node, ext_name)
diff --git a/tests/duplicates/fixtures/allow_duplicates001.xml b/tests/duplicates/fixtures/allow_duplicates001.xml
index f2f666875..feaf936c6 100644
--- a/tests/duplicates/fixtures/allow_duplicates001.xml
+++ b/tests/duplicates/fixtures/allow_duplicates001.xml
@@ -28,7 +28,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>false</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>
diff --git a/tests/duplicates/fixtures/allow_macros001.xml b/tests/duplicates/fixtures/allow_macros001.xml
index 9fa9983db..11af850e0 100644
--- a/tests/duplicates/fixtures/allow_macros001.xml
+++ b/tests/duplicates/fixtures/allow_macros001.xml
@@ -28,7 +28,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>false</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>
diff --git a/tests/duplicates/fixtures/allow_projects001.xml b/tests/duplicates/fixtures/allow_projects001.xml
index d515d2356..90dce6c6a 100644
--- a/tests/duplicates/fixtures/allow_projects001.xml
+++ b/tests/duplicates/fixtures/allow_projects001.xml
@@ -28,7 +28,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>false</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>
diff --git a/tests/duplicates/fixtures/allow_templates001.xml b/tests/duplicates/fixtures/allow_templates001.xml
index d515d2356..90dce6c6a 100644
--- a/tests/duplicates/fixtures/allow_templates001.xml
+++ b/tests/duplicates/fixtures/allow_templates001.xml
@@ -28,7 +28,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>false</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>
diff --git a/tests/duplicates/fixtures/duplicates001.xml b/tests/duplicates/fixtures/duplicates001.xml
index cae598f7e..1107ce977 100644
--- a/tests/duplicates/fixtures/duplicates001.xml
+++ b/tests/duplicates/fixtures/duplicates001.xml
@@ -28,7 +28,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>false</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>
@@ -80,7 +79,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>false</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>
diff --git a/tests/duplicates/fixtures/duplicates002.xml b/tests/duplicates/fixtures/duplicates002.xml
index 01faa9307..f2663650b 100644
--- a/tests/duplicates/fixtures/duplicates002.xml
+++ b/tests/duplicates/fixtures/duplicates002.xml
@@ -28,7 +28,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>false</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>
@@ -80,7 +79,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>false</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>
diff --git a/tests/macros/scm/multi-scms001.xml b/tests/macros/scm/multi-scms001.xml
index 84ef8e805..6ab7c8a62 100644
--- a/tests/macros/scm/multi-scms001.xml
+++ b/tests/macros/scm/multi-scms001.xml
@@ -30,7 +30,6 @@
         <recursiveSubmodules>false</recursiveSubmodules>
         <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
         <authorOrCommitter>false</authorOrCommitter>
-        <clean>false</clean>
         <wipeOutWorkspace>true</wipeOutWorkspace>
         <pruneBranches>false</pruneBranches>
         <remotePoll>false</remotePoll>
@@ -68,7 +67,6 @@
         <recursiveSubmodules>false</recursiveSubmodules>
         <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
         <authorOrCommitter>false</authorOrCommitter>
-        <clean>false</clean>
         <wipeOutWorkspace>true</wipeOutWorkspace>
         <pruneBranches>false</pruneBranches>
         <remotePoll>false</remotePoll>
diff --git a/tests/macros/scm/multi-scms002.xml b/tests/macros/scm/multi-scms002.xml
index af2b3e79c..149afc336 100644
--- a/tests/macros/scm/multi-scms002.xml
+++ b/tests/macros/scm/multi-scms002.xml
@@ -42,7 +42,6 @@
         <recursiveSubmodules>false</recursiveSubmodules>
         <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
         <authorOrCommitter>false</authorOrCommitter>
-        <clean>false</clean>
         <wipeOutWorkspace>true</wipeOutWorkspace>
         <pruneBranches>false</pruneBranches>
         <remotePoll>false</remotePoll>
diff --git a/tests/macros/scm/scm002.xml b/tests/macros/scm/scm002.xml
index be1932d3f..d38872e1d 100644
--- a/tests/macros/scm/scm002.xml
+++ b/tests/macros/scm/scm002.xml
@@ -28,7 +28,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>false</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>
diff --git a/tests/scm/fixtures/git-clean01.xml b/tests/scm/fixtures/git-clean01.xml
new file mode 100644
index 000000000..d22263d15
--- /dev/null
+++ b/tests/scm/fixtures/git-clean01.xml
@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="utf-8"?>
+<project>
+  <scm class="hudson.plugins.git.GitSCM">
+    <configVersion>2</configVersion>
+    <userRemoteConfigs>
+      <hudson.plugins.git.UserRemoteConfig>
+        <name>origin</name>
+        <refspec>+refs/heads/*:refs/remotes/origin/*</refspec>
+        <url>https://github.com/openstack-infra/jenkins-job-builder.git</url>
+      </hudson.plugins.git.UserRemoteConfig>
+    </userRemoteConfigs>
+    <branches>
+      <hudson.plugins.git.BranchSpec>
+        <name>**</name>
+      </hudson.plugins.git.BranchSpec>
+    </branches>
+    <excludedUsers/>
+    <buildChooser class="hudson.plugins.git.util.DefaultBuildChooser"/>
+    <disableSubmodules>false</disableSubmodules>
+    <recursiveSubmodules>false</recursiveSubmodules>
+    <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
+    <authorOrCommitter>false</authorOrCommitter>
+    <wipeOutWorkspace>true</wipeOutWorkspace>
+    <pruneBranches>false</pruneBranches>
+    <remotePoll>false</remotePoll>
+    <gitTool>Default</gitTool>
+    <submoduleCfg class="list"/>
+    <relativeTargetDir/>
+    <reference/>
+    <gitConfigName/>
+    <gitConfigEmail/>
+    <skipTag>false</skipTag>
+    <scmName/>
+    <useShallowClone>false</useShallowClone>
+    <ignoreNotifyCommit>false</ignoreNotifyCommit>
+    <extensions>
+      <hudson.plugins.git.extensions.impl.CleanCheckout/>
+      <hudson.plugins.git.extensions.impl.CleanBeforeCheckout/>
+      <hudson.plugins.git.extensions.impl.WipeWorkspace/>
+    </extensions>
+  </scm>
+</project>
diff --git a/tests/scm/fixtures/git-clean01.yaml b/tests/scm/fixtures/git-clean01.yaml
new file mode 100644
index 000000000..8c551fa33
--- /dev/null
+++ b/tests/scm/fixtures/git-clean01.yaml
@@ -0,0 +1,6 @@
+scm:
+    - git:
+        url: https://github.com/openstack-infra/jenkins-job-builder.git
+        clean:
+            after: true
+            before: true
diff --git a/tests/scm/fixtures/git-ignore-notify01.xml b/tests/scm/fixtures/git-ignore-notify01.xml
index 098c0a45d..48ebc27c7 100644
--- a/tests/scm/fixtures/git-ignore-notify01.xml
+++ b/tests/scm/fixtures/git-ignore-notify01.xml
@@ -20,7 +20,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>true</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>
@@ -35,6 +34,7 @@
     <useShallowClone>false</useShallowClone>
     <ignoreNotifyCommit>true</ignoreNotifyCommit>
     <extensions>
+      <hudson.plugins.git.extensions.impl.CleanCheckout/>
       <hudson.plugins.git.extensions.impl.WipeWorkspace/>
     </extensions>
   </scm>
diff --git a/tests/scm/fixtures/git-ignore-notify02.xml b/tests/scm/fixtures/git-ignore-notify02.xml
index cf7cb864c..6a2944f81 100644
--- a/tests/scm/fixtures/git-ignore-notify02.xml
+++ b/tests/scm/fixtures/git-ignore-notify02.xml
@@ -20,7 +20,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>true</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>
@@ -35,6 +34,7 @@
     <useShallowClone>false</useShallowClone>
     <ignoreNotifyCommit>false</ignoreNotifyCommit>
     <extensions>
+      <hudson.plugins.git.extensions.impl.CleanCheckout/>
       <hudson.plugins.git.extensions.impl.WipeWorkspace/>
     </extensions>
   </scm>
diff --git a/tests/scm/fixtures/git-ignore-notify03.xml b/tests/scm/fixtures/git-ignore-notify03.xml
index cf7cb864c..6a2944f81 100644
--- a/tests/scm/fixtures/git-ignore-notify03.xml
+++ b/tests/scm/fixtures/git-ignore-notify03.xml
@@ -20,7 +20,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>true</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>
@@ -35,6 +34,7 @@
     <useShallowClone>false</useShallowClone>
     <ignoreNotifyCommit>false</ignoreNotifyCommit>
     <extensions>
+      <hudson.plugins.git.extensions.impl.CleanCheckout/>
       <hudson.plugins.git.extensions.impl.WipeWorkspace/>
     </extensions>
   </scm>
diff --git a/tests/scm/fixtures/git-multiple-remotes.xml b/tests/scm/fixtures/git-multiple-remotes.xml
index 65831c7fc..d5ac5d40e 100644
--- a/tests/scm/fixtures/git-multiple-remotes.xml
+++ b/tests/scm/fixtures/git-multiple-remotes.xml
@@ -26,7 +26,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>false</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>
diff --git a/tests/scm/fixtures/git-shallow-clone01.xml b/tests/scm/fixtures/git-shallow-clone01.xml
index f3c2044eb..8b9bf77fb 100644
--- a/tests/scm/fixtures/git-shallow-clone01.xml
+++ b/tests/scm/fixtures/git-shallow-clone01.xml
@@ -21,7 +21,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>true</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>
@@ -36,6 +35,7 @@
     <useShallowClone>true</useShallowClone>
     <ignoreNotifyCommit>false</ignoreNotifyCommit>
     <extensions>
+      <hudson.plugins.git.extensions.impl.CleanCheckout/>
       <hudson.plugins.git.extensions.impl.WipeWorkspace/>
     </extensions>
   </scm>
diff --git a/tests/scm/fixtures/git-shallow-clone02.xml b/tests/scm/fixtures/git-shallow-clone02.xml
index cf7cb864c..6a2944f81 100644
--- a/tests/scm/fixtures/git-shallow-clone02.xml
+++ b/tests/scm/fixtures/git-shallow-clone02.xml
@@ -20,7 +20,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>true</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>
@@ -35,6 +34,7 @@
     <useShallowClone>false</useShallowClone>
     <ignoreNotifyCommit>false</ignoreNotifyCommit>
     <extensions>
+      <hudson.plugins.git.extensions.impl.CleanCheckout/>
       <hudson.plugins.git.extensions.impl.WipeWorkspace/>
     </extensions>
   </scm>
diff --git a/tests/scm/fixtures/git-shallow-clone03.xml b/tests/scm/fixtures/git-shallow-clone03.xml
index cf7cb864c..6a2944f81 100644
--- a/tests/scm/fixtures/git-shallow-clone03.xml
+++ b/tests/scm/fixtures/git-shallow-clone03.xml
@@ -20,7 +20,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>true</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>
@@ -35,6 +34,7 @@
     <useShallowClone>false</useShallowClone>
     <ignoreNotifyCommit>false</ignoreNotifyCommit>
     <extensions>
+      <hudson.plugins.git.extensions.impl.CleanCheckout/>
       <hudson.plugins.git.extensions.impl.WipeWorkspace/>
     </extensions>
   </scm>
diff --git a/tests/scm/fixtures/git-submodule01.xml b/tests/scm/fixtures/git-submodule01.xml
index aa481fb6e..08d74338b 100644
--- a/tests/scm/fixtures/git-submodule01.xml
+++ b/tests/scm/fixtures/git-submodule01.xml
@@ -18,7 +18,6 @@
     <buildChooser class="hudson.plugins.git.util.DefaultBuildChooser"/>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>false</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>
diff --git a/tests/scm/fixtures/git001.xml b/tests/scm/fixtures/git001.xml
index 3ef61fbc2..3517bf599 100644
--- a/tests/scm/fixtures/git001.xml
+++ b/tests/scm/fixtures/git001.xml
@@ -23,7 +23,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>false</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>
diff --git a/tests/scm/fixtures/git002.xml b/tests/scm/fixtures/git002.xml
index 5e1a6283b..ab1e895bf 100644
--- a/tests/scm/fixtures/git002.xml
+++ b/tests/scm/fixtures/git002.xml
@@ -23,7 +23,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>false</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>
diff --git a/tests/scm/fixtures/gitlab.xml b/tests/scm/fixtures/gitlab.xml
index 9d871cf5a..887ef98c6 100644
--- a/tests/scm/fixtures/gitlab.xml
+++ b/tests/scm/fixtures/gitlab.xml
@@ -20,7 +20,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>false</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>
diff --git a/tests/scm/fixtures/local-branch001.xml b/tests/scm/fixtures/local-branch001.xml
index 838bf46dd..859a26caf 100644
--- a/tests/scm/fixtures/local-branch001.xml
+++ b/tests/scm/fixtures/local-branch001.xml
@@ -20,7 +20,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>false</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>
diff --git a/tests/scm/fixtures/stash.xml b/tests/scm/fixtures/stash.xml
index a50f954ab..ea167e5a8 100644
--- a/tests/scm/fixtures/stash.xml
+++ b/tests/scm/fixtures/stash.xml
@@ -20,7 +20,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>false</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>
diff --git a/tests/yamlparser/fixtures/complete001.xml b/tests/yamlparser/fixtures/complete001.xml
index fd10bed8d..d556b97bf 100644
--- a/tests/yamlparser/fixtures/complete001.xml
+++ b/tests/yamlparser/fixtures/complete001.xml
@@ -28,7 +28,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>true</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>true</pruneBranches>
     <remotePoll>false</remotePoll>
@@ -43,6 +42,7 @@
     <useShallowClone>false</useShallowClone>
     <ignoreNotifyCommit>false</ignoreNotifyCommit>
     <extensions>
+      <hudson.plugins.git.extensions.impl.CleanCheckout/>
       <hudson.plugins.git.extensions.impl.WipeWorkspace/>
     </extensions>
     <browser class="hudson.plugins.git.browser.GitWeb">
diff --git a/tests/yamlparser/fixtures/scm_remote_deep_bug.xml b/tests/yamlparser/fixtures/scm_remote_deep_bug.xml
index 86a4a4b01..05575c407 100644
--- a/tests/yamlparser/fixtures/scm_remote_deep_bug.xml
+++ b/tests/yamlparser/fixtures/scm_remote_deep_bug.xml
@@ -28,7 +28,6 @@
     <recursiveSubmodules>false</recursiveSubmodules>
     <doGenerateSubmoduleConfigurations>false</doGenerateSubmoduleConfigurations>
     <authorOrCommitter>false</authorOrCommitter>
-    <clean>false</clean>
     <wipeOutWorkspace>true</wipeOutWorkspace>
     <pruneBranches>false</pruneBranches>
     <remotePoll>false</remotePoll>