diff --git a/sys/sys/syscall.h b/sys/sys/syscall.h
index e31a89c34fe5..0096321e8bcc 100644
--- a/sys/sys/syscall.h
+++ b/sys/sys/syscall.h
@@ -2,9 +2,12 @@
  * System call numbers.
  *
  * DO NOT EDIT-- this file is automatically generated.
- * created from 	$Id: syscall.h,v 1.6 1993/05/20 02:59:55 cgd Exp $
+ * created from: syscalls.master,v 1.5 1993/05/20 02:55:11
  */
 
+#ifndef _SYS_SYSCALL_H
+#define _SYS_SYSCALL_H
+
 #define	SYS_exit	1
 #define	SYS_fork	2
 #define	SYS_read	3
@@ -167,3 +170,5 @@
 #define	SYS_setgid	181
 #define	SYS_setegid	182
 #define	SYS_seteuid	183
+
+#endif /* _SYS_SYSCALL_H */