diff --git a/examples/real_world/main_web.py b/examples/real_world/main_web.py
index 0ac71d0d..ef3a57a4 100644
--- a/examples/real_world/main_web.py
+++ b/examples/real_world/main_web.py
@@ -13,7 +13,7 @@
 
 
 def create_fastapi_app() -> FastAPI:
-    app = FastAPI()
+    app = FastAPI(lifespan=lifespan)
     app.include_router(router)
     return app