diff --git a/fluid/neural_machine_translation/transformer/train.py b/fluid/neural_machine_translation/transformer/train.py
index d82a233a6e1af1b198ebe2ff8cec89d500f169b7..4b10c26e3e5b3b99adac19784b519829ce618805 100644
--- a/fluid/neural_machine_translation/transformer/train.py
+++ b/fluid/neural_machine_translation/transformer/train.py
@@ -225,6 +225,7 @@ def main():
                                                                     fluid.CUDAPlace(place_id))
 
                 for var_name in util_input_dict:
+                    print var_name, local_scope.find_var(var_name)
                     local_scope.find_var(var_name).get_tensor().set(util_input_dict[var_name],
                                                                     fluid.CUDAPlace(place_id))