diff --git a/src/planner/launch/real_hybrid_astar.launch.py b/src/planner/launch/real_hybrid_astar.launch.py
index b69ee38..cf7a852 100644
--- a/src/planner/launch/real_hybrid_astar.launch.py
+++ b/src/planner/launch/real_hybrid_astar.launch.py
@@ -273,7 +273,7 @@ def generate_launch_description():
             "lidar_params",
             description="Required: LSLIDAR YAML matching the actual sensor/interface.",
         ),
-        DeclareLaunchArgument("lidar_serial_port", default_value="/dev/ttyCH343USB0"),
+        DeclareLaunchArgument("lidar_serial_port", default_value="/dev/radar"),
         DeclareLaunchArgument("lidar_model", default_value="N10"),
         DeclareLaunchArgument(
             "start_lidar",