diff --git a/usr.bin/ruptime/ruptime.c b/usr.bin/ruptime/ruptime.c
index 0b83a5e6bae..24e20213ef0 100644
--- a/usr.bin/ruptime/ruptime.c
+++ b/usr.bin/ruptime/ruptime.c
@@ -31,6 +31,8 @@
  * SUCH DAMAGE.
  */
 
+/* $Id$ */
+
 #ifndef lint
 static char copyright[] =
 "@(#) Copyright (c) 1983, 1993, 1994\n\