diff --git a/compat/fgetln.c b/compat/fgetln.c
index 662cf60f..598f0672 100644
--- a/compat/fgetln.c
+++ b/compat/fgetln.c
@@ -1,3 +1,4 @@
+/* $Id: fgetln.c,v 1.5 2009-04-29 22:45:32 nicm Exp $ */
 /*	$NetBSD: fgetln.c,v 1.3 2007/08/07 02:06:58 lukem Exp $	*/
 
 /*-
diff --git a/compat/getopt.h b/compat/getopt.h
index 92935a5a..3134801e 100644
--- a/compat/getopt.h
+++ b/compat/getopt.h
@@ -1,3 +1,4 @@
+/* $Id: getopt.h,v 1.5 2009-04-29 22:45:32 nicm Exp $ */
 /*	$OpenBSD: getopt.h,v 1.2 2008/06/26 05:42:04 ray Exp $	*/
 /*	$NetBSD: getopt.h,v 1.4 2000/07/07 10:43:54 ad Exp $	*/
 
diff --git a/compat/getopt_long.c b/compat/getopt_long.c
index 3a8a5ec1..f72435d1 100644
--- a/compat/getopt_long.c
+++ b/compat/getopt_long.c
@@ -1,3 +1,4 @@
+/* $Id: getopt_long.c,v 1.4 2009-04-29 22:45:32 nicm Exp $ */
 /*	$OpenBSD: getopt_long.c,v 1.23 2007/10/31 12:34:57 chl Exp $	*/
 /*	$NetBSD: getopt_long.c,v 1.15 2002/01/31 22:43:40 tv Exp $	*/
 
diff --git a/compat/tree.h b/compat/tree.h
index 8393b817..853a9a9b 100644
--- a/compat/tree.h
+++ b/compat/tree.h
@@ -1,3 +1,4 @@
+/* $Id: tree.h,v 1.3 2009-04-29 22:45:32 nicm Exp $ */
 /*	$OpenBSD: tree.h,v 1.11 2008/05/11 22:19:09 millert Exp $	*/
 /*
  * Copyright 2002 Niels Provos <provos@citi.umich.edu>