diff --git a/Arrangement_on_surface_2/include/CGAL/Arr_topology_traits/Arr_bounded_planar_vert_decomp_helper.h b/Arrangement_on_surface_2/include/CGAL/Arr_topology_traits/Arr_bounded_planar_vert_decomp_helper.h
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diff --git a/Arrangement_on_surface_2/include/CGAL/Arr_topology_traits/Arr_spherical_vert_decomp_helper.h b/Arrangement_on_surface_2/include/CGAL/Arr_topology_traits/Arr_spherical_vert_decomp_helper.h
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diff --git a/Arrangement_on_surface_2/include/CGAL/Arr_topology_traits/Arr_unb_planar_vert_decomp_helper.h b/Arrangement_on_surface_2/include/CGAL/Arr_topology_traits/Arr_unb_planar_vert_decomp_helper.h
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new mode 100644