diff --git a/setup.cfg b/setup.cfg
index b3adc59011db..edcf3c564e15 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -14,8 +14,10 @@ ignore =
     E305,
     # E401: multiple imports on one line
     E401,
-    # too many leading '#' for block comment
+    # E266: too many leading '#' for block comment
     E266,
-    # module level import not at top of file
-    E402
+    # E402: module level import not at top of file
+    E402,
+    # E731: do not assign a lambda expression, use a def (too many false positives)
+    E731
 max-line-length = 120