diff --git a/setup.cfg b/setup.cfg
index 1a3c4c2..69d0db6 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,7 +1,7 @@
 [flake8]
 # Keep in sync with .flake8. This copy here is needed for source packages
 # to be able to pass tests without failing selfclean check.
-ignore = E203, E302, E501, E999, W503
+ignore = E203, E302, E501, E999, W503, B042
 max-line-length = 88
 max-complexity = 12
 select = B,C,E,F,W,B9