diff --git a/doc/Chip.py b/doc/Chip.py
index c489d090..89181e9d 100644
--- a/doc/Chip.py
+++ b/doc/Chip.py
@@ -58,7 +58,7 @@ class Chip(object):
                 ],
                 'response': [
                     _common.RspHead(),
-                    ['!data', Union([
+                    ['!data', _common.Union([
                         [_common.Hero()(), '英雄'],
                         [_common.ChipCore(), '核心加成'],
                     ]), '英雄加成信息']