diff --git a/setup.cfg b/setup.cfg
index e4ca040..4fc0769 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,8 +1,5 @@
 [flake8]
-extend-ignore=
-    E203, # See https://github.com/PyCQA/pycodestyle/issues/373
-    E501, # style related, follow black
-    W503, # style related, follow black
+extend-ignore= "E203,E501,W503"
 max-line-length = 120
 max-complexity = 100