diff --git a/tox.ini b/tox.ini
index 4182f1723..78abf20d6 100644
--- a/tox.ini
+++ b/tox.ini
@@ -70,12 +70,11 @@ commands = python setup.py build_sphinx
 # E265 block comment should start with ‘# ‘
 # H305 imports not grouped correctly
 # H307 like imports should be grouped together
-# H401 docstring should not start with a space
 # H402 one line docstring needs punctuation
 # H405 multi line docstring summary not separated with an empty line
 # H904 Wrap long lines in parentheses instead of a backslash
 # TODO(marun) H404 multi line docstring should start with a summary
-ignore = E125,E126,E128,E129,E265,H305,H307,H401,H402,H404,H405,H904
+ignore = E125,E126,E128,E129,E265,H305,H307,H402,H404,H405,H904
 show-source = true
 builtins = _
 exclude = .venv,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,build,tools,.ropeproject,rally-scenarios