diff --git a/python_binding/operator/pybind_MetaOperatorDefs.cpp b/python_binding/operator/pybind_MetaOperatorDefs.cpp
index 5f6cc12fc1e84ee245fdb7babf025b5af4316315..aa1889c69d8bfb5c0714d26688c5d225463eef3e 100644
--- a/python_binding/operator/pybind_MetaOperatorDefs.cpp
+++ b/python_binding/operator/pybind_MetaOperatorDefs.cpp
@@ -194,8 +194,8 @@ void init_MetaOperatorDefs(py::module &m) {
 //   declare_PaddedMaxPoolingOp<3>(m);
   declare_LSTMOp(m);
 
-  py::class_<MetaOperator_Op, std::shared_ptr<MetaOperator_Op>, OperatorTensor>(m, "MetaOperator_Op", py::multiple_inheritance())
-  .def(py::init<const char *, const std::shared_ptr<GraphView>&, const std::vector<InputCategory>&>(),
+  py::class_<MetaOperator_Op, std::shared_ptr<MetaOperator_Op>, OperatorTensor>(m, "MetaOperatorOp", py::multiple_inheritance())
+  .def(py::init<const char *, const std::shared_ptr<GraphView>&>(),
           py::arg("type"),
           py::arg("graph"),
           py::arg("forced_inputs_category") = std::vector<InputCategory>())