diff --git a/setup.cfg b/setup.cfg
index 3426f8c7b8..b6eb0475d9 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,7 +1,7 @@
 [flake8]
 max-line-length = 160
 builtins = _,dynamic_property,__,P,I,lopen,icu_lower,icu_upper,icu_title,ngettext
-ignore = E12,E203,E22,E231,E241,E401,E402,E731,W391,E722,E741
+ignore = E12,E203,E22,E231,E241,E401,E402,E731,W391,E722,E741,W504
 
 [yapf]
 based_on_style = pep8