1 files changed, 1 insertions, 1 deletions
diff --git a/tox.ini b/tox.ini
index 50896682..0e6b4bbe 100644
--- a/tox.ini
+++ b/tox.ini
@@ -93,7 +93,7 @@ commands =
 # Following checks are ignored on purpose.
 #
 # Additional checks are also ignored on purpose: F811, F821
-ignore = F811,F821,H404,H405
+ignore = E731,F811,F821,H404,H405
 show-source = True
 exclude=.venv,.git,.tox,dist,*lib/python*,*egg,build,doc/source/conf.py,releasenotes