diff --git a/README.md b/README.md
index 07bd9885fe6ef1c973a7a6493de935e11a8b536b..68db4cfb4807911cf7992a6261320c8ee532175b 100644
--- a/README.md
+++ b/README.md
@@ -122,7 +122,7 @@ Make sure to connect the **SCL** and **SDA** lines for I2C communication, as wel
 ## How It Works
    - 
    ```bash
-   ros2 run serial_to_pcl serial_to_pcl_node
+   ros2 run serial_to_pcl serial_to_pcl_node --ros-args -p usb_port:=<Your_USB_port>
    ```
 ### Sensor Configuration