diff --git a/BGL/include/CGAL/boost/graph/selection.h b/BGL/include/CGAL/boost/graph/selection.h
index b0ea97d89dd..46f36e27839 100644
--- a/BGL/include/CGAL/boost/graph/selection.h
+++ b/BGL/include/CGAL/boost/graph/selection.h
@@ -543,7 +543,7 @@ regularize_face_selection_borders(
                             (face_index_map));
 
   for (mesh_face_descriptor fd : faces(mesh))
-    put(is_selected, fd, graph.labels[get(face_index_map,fd)]);
+    put(is_selected, fd, (graph.labels[get(face_index_map,fd)] != 0));
 }
 
 /// \cond SKIP_IN_MANUAL