diff --git a/initializer.py b/initializer.py
index 3a8d773f..c50240c7 100644
--- a/initializer.py
+++ b/initializer.py
@@ -96,6 +96,13 @@ def update_config():
             'ocr_service_url': '',
         }
         overwrite_cofig = True
+ 
+    # 索引器重置为builtin
+    search_indexer = _config.get("pt", {}).get("search_indexer")
+    if not search_indexer or not (isinstance(search_indexer, str) and search_indexer == "builtin"):
+        _config['pt']['search_indexer'] = "builtin"
+        overwrite_cofig = True
+
     # 字幕兼容旧配置
     try:
         subtitle = Config().get_config('subtitle') or {}