diff --git a/mods/ra/maps/ant-01/ant-attack.lua b/mods/ra/maps/ant-01/ant-attack.lua
index 2829fdac55..175ba7d334 100644
--- a/mods/ra/maps/ant-01/ant-attack.lua
+++ b/mods/ra/maps/ant-01/ant-attack.lua
@@ -1,3 +1,11 @@
+--[[
+   Copyright 2007-2019 The OpenRA Developers (see AUTHORS)
+   This file is part of OpenRA, which is free software. It is made
+   available to you under the terms of the GNU General Public License
+   as published by the Free Software Foundation, either version 3 of
+   the License, or (at your option) any later version. For more
+   information, see COPYING.
+]]
 DifficultySetting = Map.LobbyOption("difficulty")
 timeTracker = 0
 amount = 1