diff --git a/modules/cmd_args.py b/modules/cmd_args.py
index de905caa..982d9055 100644
--- a/modules/cmd_args.py
+++ b/modules/cmd_args.py
@@ -107,3 +107,4 @@ parser.add_argument("--no-hashing", action='store_true', help="disable sha256 ha
 parser.add_argument("--no-download-sd-model", action='store_true', help="don't download SD1.5 model even if no model is found in --ckpt-dir", default=False)
 parser.add_argument('--subpath', type=str, help='customize the subpath for gradio, use with reverse proxy')
 parser.add_argument('--add-stop-route', action='store_true', help='add /_stop route to stop server')
+parser.add_argument('--timeout-keep-alive', type=int, default=30, help='set timeout_keep_alive for uvicorn')