diff --git a/nonebot/__init__.py b/nonebot/__init__.py
index 4b606b8f..949c0f5f 100644
--- a/nonebot/__init__.py
+++ b/nonebot/__init__.py
@@ -78,7 +78,7 @@ def init(config_object: Optional[Any] = None) -> None:
     _bot.server_app.before_serving(_start_scheduler)
 
 
-def _start_scheduler():
+async def _start_scheduler():
     if scheduler and not scheduler.running:
         scheduler.configure(_bot.config.APSCHEDULER_CONFIG)
         scheduler.start()