diff --git a/tox.ini b/tox.ini
index c7406de..7131819 100644
--- a/tox.ini
+++ b/tox.ini
@@ -35,6 +35,20 @@ commands =
   rm -rf api-ref/build
   sphinx-build -a -E -W -d api-ref/build/doctrees -b html api-ref/source api-ref/build/html
 
+
+[testenv:checkbuild]
+# Only build PDF and push it to publish-docs folder so that OpenStack
+# CI jobs will publish it.
+whitelist_externals =
+  make
+  cp
+  mkdir
+commands =
+  sphinx-build -a -E -W -d doc/build/doctrees -b latex doc/source doc/build/pdf
+  make -C doc/build/pdf
+  mkdir publish-docs
+  cp doc/build/pdf/os-doc-demo.pdf publish-docs
+
 [testenv:bindep]
 # Do not install any requirements. We want this to be fast and work even if
 # system dependencies are missing, since it's used to tell you what system