diff --git a/HalfedgeDS/include/CGAL/boost/graph/graph_traits_HalfedgeDS_default.h b/HalfedgeDS/include/CGAL/boost/graph/graph_traits_HalfedgeDS_default.h
index fb7fdf78d1b..6b3898880b1 100644
--- a/HalfedgeDS/include/CGAL/boost/graph/graph_traits_HalfedgeDS_default.h
+++ b/HalfedgeDS/include/CGAL/boost/graph/graph_traits_HalfedgeDS_default.h
@@ -1,4 +1,4 @@
-// Copyright (c) 20018  GeometryFactory (France).  All rights reserved.
+// Copyright (c) 2018  GeometryFactory (France).  All rights reserved.
 //
 // 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