diff --git a/lib/zip_replace_data.c b/lib/zip_replace_data.c
index c75debd..4e80de2 100644
--- a/lib/zip_replace_data.c
+++ b/lib/zip_replace_data.c
@@ -1,3 +1,27 @@
+/*
+  zip_replace_data.c -- replace file from buffer
+  Copyright (C) 1999 Dieter Baron and Thomas Klaunser
+
+  This file is part of libzip, a library to manipulate ZIP files.
+  The authors can be contacted at <nih@giga.or.at>
+
+  This program is free software; you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation; either version 2 of the License, or
+  (at your option) any later version.
+
+  This program is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+  GNU General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with this program; if not, write to the Free Software
+  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+
+
 #include <stdlib.h>
 
 #include "zip.h"