diff --git a/paddle/fluid/framework/fleet/ascend_wrapper.h b/paddle/fluid/framework/fleet/ascend_wrapper.h
index 912d1b1c040b9..cba98699fc5e4 100644
--- a/paddle/fluid/framework/fleet/ascend_wrapper.h
+++ b/paddle/fluid/framework/fleet/ascend_wrapper.h
@@ -40,7 +40,7 @@ namespace framework {
 typedef ge::Graph AscendGraphDesc;
 
 #ifdef PADDLE_WITH_ASCEND_STRING
-using AscendString = AscendString;
+using AscendString = ge::AscendString;
 #else
 using AscendString = std::string;
 #endif
diff --git a/paddle/fluid/pybind/ascend_wrapper_py.cc b/paddle/fluid/pybind/ascend_wrapper_py.cc
index 11c90b8f90d27..cfab436a6446a 100644
--- a/paddle/fluid/pybind/ascend_wrapper_py.cc
+++ b/paddle/fluid/pybind/ascend_wrapper_py.cc
@@ -269,7 +269,7 @@ void BindAscendGraph(py::module *m) {
 #ifdef PADDLE_WITH_ASCEND_STRING
       .def("register_call_back_func",
            static_cast<ge::Status (ge::Session::*)(  // NOLINT
-               const char *, const ge::Session::pCallBackFunc &)>(
+               const char *, const ge::session::pCallBackFunc &)>(
                &ge::Session::RegisterCallBackFunc))
 #else
       .def("register_call_back_func",