diff --git a/gtk/TreeModelFilter.cs b/gtk/TreeModelFilter.cs
index 03636f1ad..22f621444 100644
--- a/gtk/TreeModelFilter.cs
+++ b/gtk/TreeModelFilter.cs
@@ -1,3 +1,23 @@
+// TreeModelFilter.cs
+//
+// Author: Mike Kestner  <mkestner@ximian.com>
+//
+// Copyright (c) 2007 Novell, Inc.
+//
+// This program is free software; you can redistribute it and/or
+// modify it under the terms of version 2 of the Lesser GNU General 
+// Public License as published by the Free Software Foundation.
+//
+// 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
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this program; if not, write to the
+// Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+// Boston, MA 02111-1307, USA.
+
 namespace Gtk {
 
 	using System;