diff --git a/tox.ini b/tox.ini
index cdd92acacd..d3babc24dc 100644
--- a/tox.ini
+++ b/tox.ini
@@ -101,6 +101,7 @@ commands = {posargs}
 # TODO(vdrok): Remove I202 from ignore list when we split out
 # the tempest plugin
 ignore = E129,I202
+filename = *.py,app.wsgi
 exclude =  .venv,.git,.tox,dist,doc,*lib/python*,*egg,build
 import-order-style = pep8
 application-import-names = ironic