diff --git a/tox.ini b/tox.ini
index a751e46d8a..81b85f7c37 100644
--- a/tox.ini
+++ b/tox.ini
@@ -40,10 +40,9 @@ commands = bash tools/lintstack.sh
 
 [flake8]
 # TODO: These are not intentionally disabled, reenable when fixed:
-# H237: module is removed in Python 3
 # H405: multi line docstring summary not separated with an empty line
 # H501: Do not use locals() for string formatting
 # H904: Wrap long lines in parentheses instead of a backslash
-ignore = E12,E711,E712,H237,H302,H303,H304,H402,H404,H405,H501,H904,F
+ignore = E12,E711,E712,H302,H303,H304,H402,H404,H405,H501,H904,F
 builtins = _
 exclude = .venv,.tox,dist,doc,openstack,*egg