diff --git a/modules/mol/base/pymod/export_surface.cc b/modules/mol/base/pymod/export_surface.cc
index f569d3e403ba59adf4dd362ebcaf39abcd3b792a..c6defa5de52452cf30b8c1402fd444582459fb82 100644
--- a/modules/mol/base/pymod/export_surface.cc
+++ b/modules/mol/base/pymod/export_surface.cc
@@ -64,8 +64,10 @@ void export_Surface()
     .def("Attach",attach1)
     .def("Attach",attach2)
     .def("GetVertexIDList", &SurfaceHandle::GetVertexIDList)
-    .def("GetTriIDList", &SurfaceHandle::GetTriIDList)    
+    .def("GetTriIDList", &SurfaceHandle::GetTriIDList) 
+    .def("AddVertex", &SurfaceHandle::AddVertex)   
     .def("GetVertex", &SurfaceHandle::GetVertex)
+    .def("AddTri", &SurfaceHandle::AddTri)
     .def("GetTri", &SurfaceHandle::GetTri)
     .def("FindWithin", &SurfaceHandle::FindWithin)
     .def("Invert",&SurfaceHandle::Invert)