diff --git a/mach/ns/ncg/mach.c b/mach/ns/ncg/mach.c
index fd4b55ec..e875cf68 100644
--- a/mach/ns/ncg/mach.c
+++ b/mach/ns/ncg/mach.c
@@ -1,3 +1,8 @@
+
+#ifndef NORCSID
+static char rcsid[] = "$Header$" ;
+#endif
+
 con_part(sz, w)
 	register int	sz;
 	word		w;
diff --git a/mach/ns/ncg/mach.h b/mach/ns/ncg/mach.h
index d270fc56..91ce7f71 100644
--- a/mach/ns/ncg/mach.h
+++ b/mach/ns/ncg/mach.h
@@ -1,3 +1,5 @@
+/* $Header$ */
+
 #define ex_ap(y)        fprintf(codefile,".extern %s\n",y)
 #define in_ap(y)        /* nothing */
 
diff --git a/mach/ns/ncg/table b/mach/ns/ncg/table
index a7e5b050..5e8f3ee1 100644
--- a/mach/ns/ncg/table
+++ b/mach/ns/ncg/table
@@ -1,3 +1,5 @@
+rcsid = "$Header$"
+
 /*****************************************************************
  *								 *
  *       N S  1 6 0 3 2    B A C K - E N D  T A B L E		 *