diff --git a/hack/.spelling_failures b/hack/.spelling_failures
index d1e687b5edd..573d1381a63 100644
--- a/hack/.spelling_failures
+++ b/hack/.spelling_failures
@@ -7,6 +7,7 @@ docs/man
 docs/user-guide
 generated.pb.go
 generated.proto
+go.sum
 pkg/client/clientset_generated
 pkg/client/informers/informers_generated/
 pkg/generated