diff --git a/tests/test_custom_openapi_subapp.py b/tests/test_custom_openapi_subapp.py
index b0d96710f..d4884303d 100644
--- a/tests/test_custom_openapi_subapp.py
+++ b/tests/test_custom_openapi_subapp.py
@@ -2,7 +2,6 @@ from fastapi import FastAPI
 from fastapi.openapi.utils import get_openapi
 from fastapi.testclient import TestClient
 
-swagger_ui_oauth2_redirect_url = "/docs/redirect"
 
 app = FastAPI()
 sub_app = FastAPI(