diff --git a/Kernel_23/test/Kernel_23/include/CGAL/_Result_of_kernel.h b/Kernel_23/test/Kernel_23/include/CGAL/_Result_of_kernel.h
index aa50b7eb781..5db88be1883 100644
--- a/Kernel_23/test/Kernel_23/include/CGAL/_Result_of_kernel.h
+++ b/Kernel_23/test/Kernel_23/include/CGAL/_Result_of_kernel.h
@@ -1,3 +1,23 @@
+// Copyright (c) 2011 GeometryFactory (France). All rights reserved.
+// All rights reserved.
+//
+// Licensees holding a valid commercial license may use this file in
+// accordance with the commercial license agreement provided with the software.
+//
+// This file is part of CGAL (www.cgal.org); you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public License as
+// published by the Free Software Foundation; version 2.1 of the License.
+// See the file LICENSE.LGPL distributed with CGAL.
+//
+// This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+// WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+//
+// $URL$
+// $Id$
+// 
+//
+// Author(s)     : Philipp Moeller
+
 #ifndef CGAL_RESULT_OF_KERNEL_H
 #define CGAL_RESULT_OF_KERNEL_H