diff --git a/usr.sbin/gpioctl/Makefile b/usr.sbin/gpioctl/Makefile
index 5053ef9b3e49..c49f92eab4eb 100644
--- a/usr.sbin/gpioctl/Makefile
+++ b/usr.sbin/gpioctl/Makefile
@@ -1,8 +1,9 @@
-# $NetBSD: Makefile,v 1.1 2005/09/27 02:54:27 jmcneill Exp $
+# $NetBSD: Makefile,v 1.2 2008/01/09 15:57:06 xtraeme Exp $
 
 PROG=	gpioctl
 SRCS=	gpioctl.c
 
 MAN=	gpioctl.8
+WARNS=	4
 
 .include <bsd.prog.mk>
diff --git a/usr.sbin/gpioctl/gpioctl.c b/usr.sbin/gpioctl/gpioctl.c
index ebae7dd1c116..cc4c7b46b31c 100644
--- a/usr.sbin/gpioctl/gpioctl.c
+++ b/usr.sbin/gpioctl/gpioctl.c
@@ -1,4 +1,4 @@
-/* $NetBSD: gpioctl.c,v 1.2 2008/01/09 15:56:27 xtraeme Exp $ */
+/* $NetBSD: gpioctl.c,v 1.3 2008/01/09 15:57:06 xtraeme Exp $ */
 /*	$OpenBSD: gpioctl.c,v 1.2 2004/08/08 00:05:09 deraadt Exp $	*/
 /*
  * Copyright (c) 2004 Alexander Yurchenko <grange@openbsd.org>
@@ -33,7 +33,7 @@
 
 #define _PATH_DEV_GPIO	"/dev/gpio0"
 
-char *device = _PATH_DEV_GPIO;
+const char *device = _PATH_DEV_GPIO;
 int devfd = -1;
 int quiet = 0;