diff --git a/tox.ini b/tox.ini
index a050f6ed1..9b80c96dc 100644
--- a/tox.ini
+++ b/tox.ini
@@ -31,10 +31,8 @@ downloadcache = ~/cache/pip
 commands = oslo_debug_helper -t keystoneclient/tests {posargs}
 
 [flake8]
-# H304: no relative imports
 # H405: multi line docstring summary not separated with an empty line
-# E122: continuation line missing indentation or outdented
-ignore = H304,H405,E122
+ignore = H405
 show-source = True
 exclude = .venv,.tox,dist,doc,*egg,build,*openstack/common*