diff --git a/Polyhedron/demo/Polyhedron/Plugins/Point_set/Point_set_shape_detection_plugin.cpp b/Polyhedron/demo/Polyhedron/Plugins/Point_set/Point_set_shape_detection_plugin.cpp
index 3a731760636..eba7568b0ce 100644
--- a/Polyhedron/demo/Polyhedron/Plugins/Point_set/Point_set_shape_detection_plugin.cpp
+++ b/Polyhedron/demo/Polyhedron/Plugins/Point_set/Point_set_shape_detection_plugin.cpp
@@ -185,11 +185,11 @@ private:
     using Face_range = typename SMesh::Face_range;
 
     using Neighbor_query =
-    CGAL::Shape_detection::Triangle_mesh::One_ring_neighbor_query<SMesh>;
+    CGAL::Shape_detection::Polygon_mesh::One_ring_neighbor_query<SMesh>;
     using Region_type =
-    CGAL::Shape_detection::Triangle_mesh::Least_squares_plane_fit_region<Kernel, SMesh>;
+    CGAL::Shape_detection::Polygon_mesh::Least_squares_plane_fit_region<Kernel, SMesh>;
     using Sorting =
-    CGAL::Shape_detection::Triangle_mesh::Least_squares_plane_fit_sorting<Kernel, SMesh, Neighbor_query>;
+    CGAL::Shape_detection::Polygon_mesh::Least_squares_plane_fit_sorting<Kernel, SMesh, Neighbor_query>;
     using Region_growing = CGAL::Shape_detection::Region_growing<
       Face_range, Neighbor_query, Region_type>;