diff --git a/voltha/Makefile b/voltha/Makefile
index 846542a..67ebfa7 100644
--- a/voltha/Makefile
+++ b/voltha/Makefile
@@ -21,4 +21,4 @@
 PYTHONFILES:=$(wildcard *.py)
 
 flake8: 
-	$(FLAKE8) --filename $(PYTHONFILES)
+	$(FLAKE8) $(PYTHONFILES)