diff --git a/packages/alicebot-adapter-cqhttp/alicebot/adapter/cqhttp/__init__.py b/packages/alicebot-adapter-cqhttp/alicebot/adapter/cqhttp/__init__.py
index db91317..0d83463 100644
--- a/packages/alicebot-adapter-cqhttp/alicebot/adapter/cqhttp/__init__.py
+++ b/packages/alicebot-adapter-cqhttp/alicebot/adapter/cqhttp/__init__.py
@@ -180,7 +180,7 @@ async def handle_cqhttp_event(self, msg: dict[str, Any]) -> None:
                     break
             event_class = self.get_event_model(
                 post_type,
-                detail_type,
+                detail_type or msg.get(post_type + "_type"),
                 msg.get("sub_type"),
             )