diff --git a/tools/__init__.py b/tools/__init__.py
index fd42c11..2e39814 100644
--- a/tools/__init__.py
+++ b/tools/__init__.py
@@ -1,5 +1,5 @@
 from .parse_markdown import parse_markdown
-from .doc import *
+from .document import *
 from .json_example import generate_example_json
 from .model import *
 from .port import *
\ No newline at end of file