diff --git a/Isosurfacing_3/include/CGAL/Isosurfacing_3/internal/Marching_cubes_3_internal.h b/Isosurfacing_3/include/CGAL/Isosurfacing_3/internal/Marching_cubes_3_internal.h
index 5375fb6fa90..12726084777 100644
--- a/Isosurfacing_3/include/CGAL/Isosurfacing_3/internal/Marching_cubes_3_internal.h
+++ b/Isosurfacing_3/include/CGAL/Isosurfacing_3/internal/Marching_cubes_3_internal.h
@@ -138,12 +138,7 @@ void mc_construct_triangles(const int i_case, const Vertices_& vertices, Triangl
         const int eg2 = Cube_table::triangle_cases[t_index + 2];
 
         // insert new triangle in list
-        std::array<Point, 3> points;
-        points[0] = vertices[eg0];
-        points[1] = vertices[eg1];
-        points[2] = vertices[eg2];
-
-        triangles.push_back(points);
+        triangles.push_back({vertices[eg0], vertices[eg1], vertices[eg2]});
     }
 }
 
@@ -156,11 +151,7 @@ void to_indexed_face_set(const TriangleList& triangle_list, PointRange& points,
         points.push_back(triangle[1]);
         points.push_back(triangle[2]);
 
-        polygons.push_back({});
-        auto& triangle = polygons.back();
-        triangle.push_back(id + 2);
-        triangle.push_back(id + 1);
-        triangle.push_back(id + 0);
+        polygons.push_back({id + 2, id + 1, id + 0});
     }
 }