diff --git a/Polyhedron/demo/Polyhedron/Plugins/PMP/Scene_facegraph_item_k_ring_selection.h b/Polyhedron/demo/Polyhedron/Plugins/PMP/Scene_facegraph_item_k_ring_selection.h
index 86747634b0f..36a50aa4cc6 100644
--- a/Polyhedron/demo/Polyhedron/Plugins/PMP/Scene_facegraph_item_k_ring_selection.h
+++ b/Polyhedron/demo/Polyhedron/Plugins/PMP/Scene_facegraph_item_k_ring_selection.h
@@ -235,6 +235,7 @@ public Q_SLOTS:
     if(face_sel.empty())
     {
       contour_2d.clear();
+      qobject_cast<CGAL::Three::Viewer_interface*>(viewer)->set2DSelectionMode(false);
       return;
     }
     //get border edges of the selected patches