diff --git a/setup.cfg b/setup.cfg
index 92b76d4..5b21807 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -6,6 +6,9 @@ norecursedirs = tests/storage/servers/*
 
 [flake8]
 # W503: Line break before operator
-ignore = W503, E731
+# E731: Use a def instead of lambda expr
+# B902: first method param should be self
+ignore = W503, E731, B902
+select = C,E,F,W,B,B9
 exclude = tests/storage/servers/*, build/
 application-package-names = tests,vdirsyncer