diff --git a/STL_Extension/include/CGAL/Has_member.h b/STL_Extension/include/CGAL/Has_member.h
index 79cf5a31b35..d89c6315774 100644
--- a/STL_Extension/include/CGAL/Has_member.h
+++ b/STL_Extension/include/CGAL/Has_member.h
@@ -12,7 +12,9 @@
 // This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 // WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 //
-//
+// $URL$
+// $Id$
+// SPDX-License-Identifier: LGPL-3.0+
 //
 // Author(s)     : Clement Jamin
 
diff --git a/Spatial_searching/include/CGAL/internal/Search_helpers.h b/Spatial_searching/include/CGAL/internal/Search_helpers.h
index 7b77f072858..cf308676fb3 100644
--- a/Spatial_searching/include/CGAL/internal/Search_helpers.h
+++ b/Spatial_searching/include/CGAL/internal/Search_helpers.h
@@ -14,6 +14,7 @@
 //
 // $URL$
 // $Id$
+// SPDX-License-Identifier: GPL-3.0+
 // 
 //
 // Author(s)     : Clement Jamin (clement.jamin.pro@gmail.com)