diff --git a/mach/pmds/cv/cv.c b/mach/pmds/cv/cv.c
index 8bfe40df8..a9a0317e7 100644
--- a/mach/pmds/cv/cv.c
+++ b/mach/pmds/cv/cv.c
@@ -15,6 +15,8 @@
  *
  */
 
+char rcs_id[] = "$Header$" ;
+
 /*
  * The assumption is that this program is run on the same machine the
  * assembler has run. So the assembler's idea of long fits cv's idea.