diff --git a/tox.ini b/tox.ini
index 1fada8baa..fa5a2f94d 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,7 +6,7 @@
 [flake8]
 max-line-length = 120
 builtins = _,__request__
-exclude = .git,dist,build
+exclude = .git,.tox,dist,build
 
 [pep8]
 max-line-length = 120