diff --git a/Makefile b/Makefile
index d7b93d1..3bc0cb7 100644
--- a/Makefile
+++ b/Makefile
@@ -91,7 +91,7 @@ clean:
 	-rm -f go.*
 	-rm -f *.pb.go
 	-rm -f autogenpb
-	-go-mod-clean --purge
+	-go-mod-clean purge
 
 clean-more:
 	ls -l autogenpb autogenpb.last