diff --git a/metagpt/tools/functions/libs/udf/__init__.py b/metagpt/tools/functions/libs/udf/__init__.py
index c581dd992..e44e97c41 100644
--- a/metagpt/tools/functions/libs/udf/__init__.py
+++ b/metagpt/tools/functions/libs/udf/__init__.py
@@ -22,11 +22,11 @@ def extract_function_signatures(file_path):
                 # 获取函数签名
                 function_signature = f"{function_name}({', '.join(args)})"
                 # 导入函数
-                module = Path(file_path).parts[-1][:-len(Path(file_path).suffix)]
-                module = importlib.import_module(f"metagpt.tools.functions.libs.udf.{module}")
+                module_name = Path(file_path).parts[-1][:-len(Path(file_path).suffix)]
+                module = importlib.import_module(f"metagpt.tools.functions.libs.udf.{module_name}")
                 # 获取函数注释和函数路径
                 function_schema = {'name': function_signature, 'doc': inspect.getdoc(getattr(module, function_name)),
-                                   'path': f'from metagpt.tools.functions.libs.udf.{module} import function_name'}
+                                   'path': f'from metagpt.tools.functions.libs.udf.{module_name} import {function_name}'}
                 function_signatures.append(function_schema)
 
     return function_signatures