diff --git a/lyrebird/mock/handlers/mock_handler.py b/lyrebird/mock/handlers/mock_handler.py
index 98b3372f..c1577882 100644
--- a/lyrebird/mock/handlers/mock_handler.py
+++ b/lyrebird/mock/handlers/mock_handler.py
@@ -75,6 +75,7 @@ def handle(self, handler_context):
                 'group_id': activated_group['id'],
                 'mock_id': hit_data['id']
             })
+            handler_context.flow['apiDiffConfig'] = hit_data.get('apiDiffConfig')
             return
 
         logger.info(