diff --git a/sbin/ipfw/Makefile b/sbin/ipfw/Makefile
index 023f682b25f5..06dd40f538a7 100644
--- a/sbin/ipfw/Makefile
+++ b/sbin/ipfw/Makefile
@@ -2,7 +2,7 @@
 
 PROG=	ipfw
 SRCS=	ipfw2.c
-WARNS?=	0
+WARNS?=	2
 MAN=	ipfw.8
 
 .include <bsd.prog.mk>