diff --git a/graphics/tiles.rc b/graphics/tiles.rc
index e7351ee..085e6e6 100644
--- a/graphics/tiles.rc
+++ b/graphics/tiles.rc
@@ -1,3 +1,11 @@
+# This file is part of MicropolisJ.
+# Copyright (C) 2013 Jason Long
+# Portions Copyright (C) 1989-2007 Electronic Arts Inc.
+#
+# MicropolisJ is free software; you can redistribute it and/or modify
+# it under the terms of the GNU GPLv3, with additional terms.
+# See the README file, included in this distribution, for details.
+
 # DIRT
 0     terrain@0,0                     (noburn)(description=#0)
 1     terrain@0,16                    (noburn)