diff --git a/ge/common/ge/tbe_plugin_manager.cc b/ge/common/ge/tbe_plugin_manager.cc
index 70c1ab94..9dda4558 100755
--- a/ge/common/ge/tbe_plugin_manager.cc
+++ b/ge/common/ge/tbe_plugin_manager.cc
@@ -105,11 +105,11 @@ void TBEPluginManager::ProcessSoFullName(vector<string> &file_list, string &caff
 }
 
 void TBEPluginManager::FindParserSo(const string &path, vector<string> &file_list,
-                                    string &caffe_parser_path, uint32_t recursive_depth) {
-  static const uint32_t max_recursive_depth = 20; // For recursive depth protection
+                                    string &caffe_parser_path, int recursive_depth) {
+  static const int kMaxRecursiveDepth = 20; // For recursive depth protection
 
-  if (recursive_depth >= max_recursive_depth) {
-    GELOGW("Recursive depth is become %u, Please check input!", recursive_depth);
+  if (recursive_depth >= kMaxRecursiveDepth) {
+    GELOGW("Recursive depth is become %d, Please check input!", recursive_depth);
     return;
   }
 
diff --git a/ge/common/ge/tbe_plugin_manager.h b/ge/common/ge/tbe_plugin_manager.h
index eada3e64..087ddd83 100755
--- a/ge/common/ge/tbe_plugin_manager.h
+++ b/ge/common/ge/tbe_plugin_manager.h
@@ -58,7 +58,7 @@ class TBEPluginManager {
                                 const string &caffe_parser_so_suff, const string &aicpu_so_suff,
                                 const string &aicpu_host_so_suff);
   static void FindParserSo(const string &path, vector<string> &file_list, string &caffe_parser_path,
-                           uint32_t recursive_depth = 0);
+                           int32_t recursive_depth = 0);
   static void GetPluginSoFileList(const string &path, vector<string> &file_list, string &caffe_parser_path);
   static void GetCustomOpPath(std::string &customop_path);
   void LoadCustomOpLib();