diff --git a/tox.ini b/tox.ini
index 0fa903831..7d8b8111c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -31,8 +31,6 @@ commands = oslo_debug_helper {posargs}
 commands = sphinx-build -a -E -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html
 
 [flake8]
-# E123, E125 skipped as they are invalid PEP-8.
-
 show-source = True
-ignore = E123,E125,F403,H102,H303
+ignore = F403,H102,H303
 exclude=.venv,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,build