diff --git a/paddle/fluid/pybind/op_function.h b/paddle/fluid/pybind/op_function.h
index 7b9379df6be2c3da466f58fdd628bce7d8adf692..5a5650e75665ca65d45f650205812ba4e9fb3de1 100644
--- a/paddle/fluid/pybind/op_function.h
+++ b/paddle/fluid/pybind/op_function.h
@@ -177,7 +177,7 @@ static inline void HandleViewBetweenInputAndOutput(
   }
 }
 
-PyObject* MakeReturnPyObject(
+static inline PyObject* MakeReturnPyObject(
     const std::shared_ptr<paddle::imperative::VarBase>& out) {
   return ::pybind11::detail::type_caster_base<imperative::VarBase>::cast_holder(
              ::pybind11::detail::holder_helper<
@@ -186,7 +186,7 @@ PyObject* MakeReturnPyObject(
       .ptr();
 }
 
-PyObject* MakeReturnPyObject(
+static inline PyObject* MakeReturnPyObject(
     const std::vector<std::shared_ptr<imperative::VarBase>>& out) {
   PyObject* result = PyList_New((Py_ssize_t)out.size());