diff --git a/tox.ini b/tox.ini
index 25eb81bc49..fdac2b3302 100644
--- a/tox.ini
+++ b/tox.ini
@@ -35,4 +35,4 @@ commands = python setup.py build_sphinx
 
 [flake8]
 show-source = True
-exclude = ,.git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,build,tools
+exclude = .git,.tox,dist,doc,*openstack/common*,*lib/python*,*egg,build,tools