diff --git a/Ridges_3/include/CGAL/PolyhedralSurf_neighbors.h b/Ridges_3/include/CGAL/PolyhedralSurf_neighbors.h
index 1a8a8caba1c..c3eca1958d5 100644
--- a/Ridges_3/include/CGAL/PolyhedralSurf_neighbors.h
+++ b/Ridges_3/include/CGAL/PolyhedralSurf_neighbors.h
@@ -1,3 +1,6 @@
+// Copyright (c) 2007  INRIA Sophia-Antipolis (France), INRIA Lorraine LORIA.
+// All rights reserved.
+//
 // This file is part of CGAL (www.cgal.org); you may redistribute it under
 // the terms of the Q Public License version 1.0.
 // See the file LICENSE.QPL distributed with CGAL.
diff --git a/Ridges_3/include/CGAL/Ridges.h b/Ridges_3/include/CGAL/Ridges.h
index 8fedbb08dbc..75997e2dce9 100644
--- a/Ridges_3/include/CGAL/Ridges.h
+++ b/Ridges_3/include/CGAL/Ridges.h
@@ -1,3 +1,6 @@
+// Copyright (c) 2007  INRIA Sophia-Antipolis (France), INRIA Lorraine LORIA.
+// All rights reserved.
+//
 // This file is part of CGAL (www.cgal.org); you may redistribute it under
 // the terms of the Q Public License version 1.0.
 // See the file LICENSE.QPL distributed with CGAL.
diff --git a/Ridges_3/include/CGAL/Umbilics.h b/Ridges_3/include/CGAL/Umbilics.h
index 3f070fbd2a4..2192850c1a5 100644
--- a/Ridges_3/include/CGAL/Umbilics.h
+++ b/Ridges_3/include/CGAL/Umbilics.h
@@ -1,3 +1,6 @@
+// Copyright (c) 2007  INRIA Sophia-Antipolis (France), INRIA Lorraine LORIA.
+// All rights reserved.
+//
 // This file is part of CGAL (www.cgal.org); you may redistribute it under
 // the terms of the Q Public License version 1.0.
 // See the file LICENSE.QPL distributed with CGAL.