diff --git a/tox.ini b/tox.ini
index 60be8ec..8e64c37 100644
--- a/tox.ini
+++ b/tox.ini
@@ -36,7 +36,9 @@
 commands = oslo_debug_helper {posargs}
 
 [flake8]
-ignore = E129
+# [E129] Visually indented line with same indent as next logical line.
+# [W503] Line break occurred before a binary operator. Conflicts with W504.
+ignore = E129,W503
 
 show-source = True
 builtins = _