diff --git a/tox.ini b/tox.ini
index 8b4a058..570c029 100644
--- a/tox.ini
+++ b/tox.ini
@@ -42,6 +42,6 @@
 # E123, E125 skipped as they are invalid PEP-8.
 
 show-source = True
-ignore = E123,E125
+ignore = E123,E125,W503
 builtins = _
 exclude=.venv,.git,.tox,dist,doc,*lib/python*,*egg,build