diff --git a/paddle/fluid/pybind/imperative.cc b/paddle/fluid/pybind/imperative.cc
index 2190dafbff8726e3e5b4b8604e38e9575ffe5958..900b49ea7e6423ffe21cf128587f33265147a3a8 100644
--- a/paddle/fluid/pybind/imperative.cc
+++ b/paddle/fluid/pybind/imperative.cc
@@ -1983,6 +1983,7 @@ void BindImperative(py::module *m_ptr) {
                  platform::errors::InvalidArgument(
                      "Tensor %s has not been initialized!", self->Name()));
              dst_->ShareBufferWith(*src);
+             dst_->ShareDataTypeWith(*src);
            })
       .def("_is_shared_buffer_with",
            [](const std::shared_ptr<imperative::VarBase> &self,