diff --git a/mempalace/mcp_server.py b/mempalace/mcp_server.py
index dcaff62..7d263a6 100644
--- a/mempalace/mcp_server.py
+++ b/mempalace/mcp_server.py
@@ -44,7 +44,8 @@ def _parse_args():
         metavar="PATH",
         help="Path to the palace directory (overrides config file and env var)",
     )
-    return parser.parse_args()
+    args, _ = parser.parse_known_args()
+    return args
 
 
 _args = _parse_args()