diff --git a/src/quickbot/main.py b/src/quickbot/main.py
index 51f4794..5561d71 100644
--- a/src/quickbot/main.py
+++ b/src/quickbot/main.py
@@ -171,7 +171,7 @@ class QBotApp(Generic[UserType, ConfigType], FastAPI):
             url=f"{self.config.TELEGRAM_WEBHOOK_URL}/telegram/webhook",
             drop_pending_updates=True,
             allowed_updates=self.allowed_updates,
-            secret_token=self.webhook_auth_key,
+            secret_token=self.config.TELEGRAM_WEBHOOK_AUTH_KEY,
         )
 
     async def show_form(