diff --git a/tox.ini b/tox.ini
index f77028afa3..8bb13c9b71 100644
--- a/tox.ini
+++ b/tox.ini
@@ -129,8 +129,9 @@ commands =
 show-source = True
 exclude = .venv,.git,.tox,dist,doc,*lib/python*,*egg,build,tools,releasenotes
 # E203 Black will put spaces after colons in list comprehensions
+# E501 Black takes care of line length for us
 # H301 Black will put commas after imports that can't fit on one line
 # W503 and W504 are disabled since they're not very useful
-ignore = E203,H301,W503,W504
+ignore = E203,E501,H301,W503,W504
 import-order-style = pep8
 application_import_names = openstackclient