diff --git a/comfy/cli_args.py b/comfy/cli_args.py
index d86557646f1..e79b89c0f0d 100644
--- a/comfy/cli_args.py
+++ b/comfy/cli_args.py
@@ -36,6 +36,8 @@ def __call__(self, parser, namespace, values, option_string=None):
 parser.add_argument("--listen", type=str, default="127.0.0.1", metavar="IP", nargs="?", const="0.0.0.0", help="Specify the IP address to listen on (default: 127.0.0.1). If --listen is provided without an argument, it defaults to 0.0.0.0. (listens on all)")
 parser.add_argument("--port", type=int, default=8188, help="Set the listen port.")
 parser.add_argument("--enable-cors-header", type=str, default=None, metavar="ORIGIN", nargs="?", const="*", help="Enable CORS (Cross-Origin Resource Sharing) with optional origin or allow all with default '*'.")
+parser.add_argument("--max-upload-size", type=float, default=100, help="Set the maximum upload size in MB.")
+
 parser.add_argument("--extra-model-paths-config", type=str, default=None, metavar="PATH", nargs='+', action='append', help="Load one or more extra_model_paths.yaml files.")
 parser.add_argument("--output-directory", type=str, default=None, help="Set the ComfyUI output directory.")
 parser.add_argument("--temp-directory", type=str, default=None, help="Set the ComfyUI temp directory (default is in the ComfyUI directory).")
diff --git a/server.py b/server.py
index 63f337a873f..11bd2a0fb44 100644
--- a/server.py
+++ b/server.py
@@ -82,7 +82,8 @@ def __init__(self, loop):
         if args.enable_cors_header:
             middlewares.append(create_cors_middleware(args.enable_cors_header))
 
-        self.app = web.Application(client_max_size=104857600, middlewares=middlewares)
+        max_upload_size = round(args.max_upload_size * 1024 * 1024)
+        self.app = web.Application(client_max_size=max_upload_size, middlewares=middlewares)
         self.sockets = dict()
         self.web_root = os.path.join(os.path.dirname(
             os.path.realpath(__file__)), "web")