diff --git a/tests/ut/parser/testcase/tensorflow_parser_testcase/tensorflow_parser_unittest.cc b/tests/ut/parser/testcase/tensorflow_parser_testcase/tensorflow_parser_unittest.cc
index 2339c2d..bd3f8c0 100644
--- a/tests/ut/parser/testcase/tensorflow_parser_testcase/tensorflow_parser_unittest.cc
+++ b/tests/ut/parser/testcase/tensorflow_parser_testcase/tensorflow_parser_unittest.cc
@@ -118,6 +118,8 @@ TEST_F(UtestTensorflowParser, tensorflow_parser_with_serialized_proto3) {
   auto arg_node = graph_def.add_node();
   arg_node->set_name("noop");
   arg_node->set_op("NoOp");
+  ge::TensorFlowModelParser modelparser;
+  modelparser.nodedef_map_ = {0};
 
   ge::graphStatus ret = model_parser->ParseProtoWithSubgraph(graph_def.SerializeAsString(),
       [](std::string)->std::string{ return "";}, compute_graph);