diff --git a/BGL/include/CGAL/boost/graph/helpers.h b/BGL/include/CGAL/boost/graph/helpers.h
index 27677cdfe7d..185a00239a3 100644
--- a/BGL/include/CGAL/boost/graph/helpers.h
+++ b/BGL/include/CGAL/boost/graph/helpers.h
@@ -945,6 +945,9 @@ void swap_edges(const typename boost::graph_traits<FaceGraph>::halfedge_descript
  * \link MutableHalfedgeGraph `remove_edge()`\endlink, and
  * \link MutableFaceGraph `remove_face()`\endlink, for each vertex, edge, and face.
  *
+ * @warning This function does not perform anything more than what is advertised above. It is
+ * up to the user to e.g. clean garbage or remove internal property maps (if relevant, and desired).
+ *
  * @tparam FaceGraph model of `MutableHalfedgeGraph` and `MutableFaceGraph`
  *
  * @param g the graph to empty