diff --git a/Makefile b/Makefile
index b1cba7070..ddf2ef861 100644
--- a/Makefile
+++ b/Makefile
@@ -75,7 +75,7 @@ vet:
 		go get golang.org/x/tools/cmd/vet; \
 	fi
 	@echo "go tool vet $(VETARGS) ."
-	@GO15VENDOREXPERIMENT=1 go tool vet $(VETARGS) . ; if [ $$? -eq 1 ]; then \
+	@GO15VENDOREXPERIMENT=1 go tool vet $(VETARGS) $$(ls -d */ | grep -v vendor) ; if [ $$? -eq 1 ]; then \
 		echo ""; \
 		echo "Vet found suspicious constructs. Please check the reported constructs"; \
 		echo "and fix them if necessary before submitting the code for review."; \