diff --git a/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/tangential_relaxation.h b/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/tangential_relaxation.h
index 3607a60452f..4fd8665b555 100644
--- a/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/tangential_relaxation.h
+++ b/Polygon_mesh_processing/include/CGAL/Polygon_mesh_processing/tangential_relaxation.h
@@ -42,7 +42,7 @@ namespace Polygon_mesh_processing {
 * is projected back to the tangent plane to the surface at `v`, iteratively.
 * The connectivity remains unchanged.
 *
-* @tparam TriangleMesh model of `FaceGraph`.
+* @tparam TriangleMesh model of `FaceGraph` and `VertexListGraph`.
 *         The descriptor types `boost::graph_traits<TriangleMesh>::%face_descriptor`
 *         and `boost::graph_traits<TriangleMesh>::%halfedge_descriptor` must be
 *         models of `Hashable`.