diff --git a/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/orientation.h b/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/orientation.h index 05c344aa3bb..03651b15e83 100644 --- a/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/orientation.h +++ b/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/orientation.h @@ -577,6 +577,7 @@ void orient_to_bound_a_volume(TriangleMesh& tm, if (!is_closed(tm)) return; if (!is_triangle_mesh(tm)) return; + using parameters::choose_parameter; using parameters::get_parameter; bool orient_outward = choose_parameter(get_parameter(np, internal_np::outward_orientation),true);