diff --git a/Polygon_mesh_processing/include/CGAL/internal/Meshing_functions/Refine_Polyhedron_3.h b/Polygon_mesh_processing/include/CGAL/internal/Meshing_functions/Refine_Polyhedron_3.h index c3d1ff7fee6..9f1d5e1673a 100644 --- a/Polygon_mesh_processing/include/CGAL/internal/Meshing_functions/Refine_Polyhedron_3.h +++ b/Polygon_mesh_processing/include/CGAL/internal/Meshing_functions/Refine_Polyhedron_3.h @@ -4,6 +4,7 @@ #include #include #include +#include #include #include