diff --git a/bin/chmod/Makefile b/bin/chmod/Makefile
index 71006d00a52..30365769833 100644
--- a/bin/chmod/Makefile
+++ b/bin/chmod/Makefile
@@ -3,4 +3,6 @@
 
 PROG=	chmod
 
+WARNS=	2
+
 .include <bsd.prog.mk>
diff --git a/bin/chmod/chmod.c b/bin/chmod/chmod.c
index 395bee14c98..11291515964 100644
--- a/bin/chmod/chmod.c
+++ b/bin/chmod/chmod.c
@@ -57,6 +57,7 @@ static const char rcsid[] =
 #include <string.h>
 #include <unistd.h>
 
+int main __P((int, char *[]));
 void usage __P((void));
 
 int