diff --git a/libraries/liblber/nt_err.c b/libraries/liblber/nt_err.c
index 1f9bd2a2e9..d5280ac4d2 100644
--- a/libraries/liblber/nt_err.c
+++ b/libraries/liblber/nt_err.c
@@ -1,4 +1,8 @@
 /* $OpenLDAP$ */
+/*
+ * Copyright 1998-1999 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
 #include "portable.h"
 
 #ifdef HAVE_WINSOCK2