diff --git a/sys/dev/md.h b/sys/dev/md.h
index c779fc82b80d..8e29388bb3a4 100644
--- a/sys/dev/md.h
+++ b/sys/dev/md.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: md.h,v 1.10 2009/10/21 23:12:10 snj Exp $	*/
+/*	$NetBSD: md.h,v 1.11 2009/12/14 03:11:22 uebayasi Exp $	*/
 
 /*
  * Copyright (c) 1995 Gordon W. Ross
@@ -25,6 +25,9 @@
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+#ifndef _SYS_DEV_MD_H_
+#define _SYS_DEV_MD_H_
+
 /*
  * Memory-disk ioctl functions:
  */
@@ -86,3 +89,5 @@ extern void md_root_setconf(char *, size_t);
 
 extern int md_is_root;
 #endif /* _KERNEL */
+
+#endif /* _SYS_DEV_MD_H_ */
diff --git a/sys/dev/vndvar.h b/sys/dev/vndvar.h
index 39379c74a08b..491eba2ec09a 100644
--- a/sys/dev/vndvar.h
+++ b/sys/dev/vndvar.h
@@ -1,4 +1,4 @@
-/*	$NetBSD: vndvar.h,v 1.25 2009/12/06 16:33:18 dsl Exp $	*/
+/*	$NetBSD: vndvar.h,v 1.26 2009/12/14 03:11:22 uebayasi Exp $	*/
 
 /*-
  * Copyright (c) 1996, 1997, 1998 The NetBSD Foundation, Inc.
@@ -106,6 +106,9 @@
  *	@(#)vnioctl.h	8.1 (Berkeley) 6/10/93
  */
 
+#ifndef _SYS_DEV_VNDVAR_H_
+#define _SYS_DEV_VNDVAR_H_
+
 #include <sys/pool.h>
 
 /*
@@ -220,3 +223,5 @@ struct vnd_user {
 				offsetof(struct vnd_ioctl, vnd_size))
 #define VNDIOOCCLR	_IOC(IOC_IN, 'F', 1, \
 				offsetof(struct vnd_ioctl, vnd_size))
+
+#endif /* _SYS_DEV_VNDVAR_H_ */