diff --git a/libraries/libavl/avl.c b/libraries/libavl/avl.c
index de0870bc6c..3b6c113ccc 100644
--- a/libraries/libavl/avl.c
+++ b/libraries/libavl/avl.c
@@ -1,4 +1,8 @@
 /* avl.c - routines to implement an avl tree */
+/*
+ * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
 /*
  * Copyright (c) 1993 Regents of the University of Michigan.
  * All rights reserved.
diff --git a/libraries/libldbm/ldbm.c b/libraries/libldbm/ldbm.c
index a3522ee2e7..3cfebe7912 100644
--- a/libraries/libldbm/ldbm.c
+++ b/libraries/libldbm/ldbm.c
@@ -1,4 +1,8 @@
 /* ldbm.c - ldap dbm compatibility routines */
+/*
+ * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
 
 /* Patched for Berkeley DB version 2.0; /KSp; 98/02/23
  *
diff --git a/libraries/libldif/fetch.c b/libraries/libldif/fetch.c
index 1118fdd2a4..69c15b7749 100644
--- a/libraries/libldif/fetch.c
+++ b/libraries/libldif/fetch.c
@@ -1,4 +1,8 @@
 /* line64.c - routines for dealing with the slapd line format */
+/*
+ * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
 
 #include "portable.h"
 
diff --git a/libraries/libldif/line64.c b/libraries/libldif/line64.c
index f331b43c95..e186d253c6 100644
--- a/libraries/libldif/line64.c
+++ b/libraries/libldif/line64.c
@@ -1,4 +1,8 @@
 /* line64.c - routines for dealing with the slapd line format */
+/*
+ * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
 
 #include "portable.h"