diff --git a/python/taichi/examples/rendering/taichi_ngp.py b/python/taichi/examples/rendering/taichi_ngp.py
index 2082a4c6bdd6c..91e4e371e9cec 100644
--- a/python/taichi/examples/rendering/taichi_ngp.py
+++ b/python/taichi/examples/rendering/taichi_ngp.py
@@ -1106,4 +1106,5 @@ def main(args):
     parser.add_argument('--model_path', type=str, default=None)
     parser.add_argument('--gui', action='store_true', default=False)
     parser.add_argument('--print_profile', action='store_true', default=False)
-    main(parser.parse_args())
+    cmd_args, _ = parser.parse_known_args()
+    main(cmd_args)