1 files changed, 1 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index a45ee898..7facc7ce 100644
--- a/tox.ini
+++ b/tox.ini
@@ -6,7 +6,7 @@ skipsdist = true
 downloadcache = ~/cache/pip
 
 [flake8]
-ignore = E501
+ignore = E501,E722
 exclude =  ./venv-tox,./.tox
 
 [testenv]