diff --git a/Triangulation_on_sphere_2/include/CGAL/Triangulation_on_sphere_2/IO/OFF.h b/Triangulation_on_sphere_2/include/CGAL/Triangulation_on_sphere_2/IO/OFF.h
index ba1a24bf48c..b64a840137d 100644
--- a/Triangulation_on_sphere_2/include/CGAL/Triangulation_on_sphere_2/IO/OFF.h
+++ b/Triangulation_on_sphere_2/include/CGAL/Triangulation_on_sphere_2/IO/OFF.h
@@ -1,4 +1,5 @@
-// Copyright (c) 2021 GeometryFactory (France).  All rights reserved.
+// Copyright (c) 1997-2021 INRIA Sophia-Antipolis (France).
+// All rights reserved.
 //
 // This file is part of CGAL (www.cgal.org)
 //
diff --git a/Triangulation_on_sphere_2/include/CGAL/Triangulation_on_sphere_2/internal/arc_on_sphere_2_subsampling.h b/Triangulation_on_sphere_2/include/CGAL/Triangulation_on_sphere_2/internal/arc_on_sphere_2_subsampling.h
index 837d70a67c7..0b06a94360a 100644
--- a/Triangulation_on_sphere_2/include/CGAL/Triangulation_on_sphere_2/internal/arc_on_sphere_2_subsampling.h
+++ b/Triangulation_on_sphere_2/include/CGAL/Triangulation_on_sphere_2/internal/arc_on_sphere_2_subsampling.h
@@ -1,3 +1,15 @@
+// Copyright (c) 1997-2021 INRIA Sophia-Antipolis (France).
+// All rights reserved.
+//
+// This file is part of CGAL (www.cgal.org).
+//
+// $URL$
+// $Id$
+// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
+//
+// Author(s)     : Sébastien Loriot
+//                 Mael Rouxel-Labbé
+//
 #ifndef CGAL_TOS2_INTERNAL_ARC_ON_SPHERE_SUBSAMPLING_H
 #define CGAL_TOS2_INTERNAL_ARC_ON_SPHERE_SUBSAMPLING_H