diff --git a/ipserv.py b/ipserv.py
index c1f789e..75ab152 100644
--- a/ipserv.py
+++ b/ipserv.py
@@ -20,7 +20,7 @@ async def lifespan(_app: FastAPI):
         yield
 
 
-app = FastAPI()
+app = FastAPI(lifespan=lifespan)
 app.state.cache = {}