diff --git a/.gitignore b/.gitignore
index 963e589..b1d88e0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -17,6 +17,7 @@ develop-eggs
 .installed.cfg
 lib
 lib64
+doc/source/_errors_list.rst
 
 # Installer logs
 pip-log.txt
diff --git a/doc/source/errors.rst b/doc/source/errors.rst
new file mode 100644
index 0000000..1c3edb9
--- /dev/null
+++ b/doc/source/errors.rst
@@ -0,0 +1,4 @@
+==============
+List of errors
+==============
+.. include:: _errors_list.rst
diff --git a/doc/source/index.rst b/doc/source/index.rst
index e95ad72..f71784d 100644
--- a/doc/source/index.rst
+++ b/doc/source/index.rst
@@ -13,6 +13,7 @@ Contents:
 
    readme
    installation
+   errors
    usage
    contributing
 
diff --git a/tools/gen_errors.py b/tools/gen_errors.py
new file mode 100644
index 0000000..4a1c514
--- /dev/null
+++ b/tools/gen_errors.py
@@ -0,0 +1,45 @@
+# Copyright 2016: Mirantis Inc.
+# All Rights Reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+import jinja2
+import six
+
+from muranopkgcheck import error
+
+TEMPLATE = """
+============  ================================================================
+    CODE                           DESCRITION
+============  ================================================================
+{% for err in errors %}{{ err.code }}          {{err.description}}
+{% endfor %}
+============  ================================================================
+"""
+
+
+def main():
+    from muranopkgcheck import validators
+    print('Validators:')
+    for v in validators.VALIDATORS:
+        print(v.__name__)
+    errors = sorted(six.itervalues(error.errors),
+                    key=lambda item: item['code'])
+    t = jinja2.Template(TEMPLATE)
+    r = t.render(errors=errors)
+    print(r)
+    with open('doc/source/_errors_list.rst', 'w') as f:
+        f.write(r)
+
+if __name__ == '__main__':
+    main()
diff --git a/tox.ini b/tox.ini
index be635c8..11d8ad1 100644
--- a/tox.ini
+++ b/tox.ini
@@ -23,7 +23,9 @@ commands = {posargs}
 commands = {toxinidir}/tools/cover.sh {posargs}
 
 [testenv:docs]
-commands = python setup.py build_sphinx
+commands =
+    python tools/gen_errors.py
+    python setup.py build_sphinx
 
 [testenv:releasenotes]
 commands =