diff --git a/tox.ini b/tox.ini
index dbd8b9c19..af5e3b5c4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -89,6 +89,10 @@ commands = python setup.py build_sphinx
 ignore = E125,E126,E128,E129,E251,E265,E713,F402,F811,F812,H104,H237,H305,H307,H401,H402,H404,H405,N530,N531,N537
 show-source = true
 builtins = _
+
+# H106: Don’t put vim configuration in source files
+# H203: Use assertIs(Not)None to check for None
+enable-extensions = H106,H203
 exclude = .venv,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,build,tools,.ropeproject,rally-scenarios,
 
 [hacking]