--- a/mcbot/mcbot_engine.lua	Sun Nov 25 19:29:32 2012 +0100
+++ b/mcbot/mcbot_engine.lua	Tue Nov 27 16:26:04 2012 +0100
@@ -1,5 +1,17 @@
 #! /usr/bin/env lua
 
+--  McBot / mcabbot project
+--
+-- Copyright (C) 2010-2012 Mikael Berthe <mikael@lilotux.net>
+--
+-- 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.
+--
+-- Please check the license in the COPYING file at the root of the tree.
+--
+
 local commands = {}
 
 function trim(s)