change -rm to rm
diff --git a/Makefile b/Makefile
index c16801e..e839753 100644
--- a/Makefile
+++ b/Makefile
@@ -53,6 +53,6 @@
 	ebtables /etc/ethertypes
 
 clean:
-	-rm -f ebtables
+	rm -f ebtables
 	rm -f *.o *.c~
 	rm -f extensions/*.o extensions/*.c~