diff --git a/realsense2_camera/launch/rs_launch.py b/realsense2_camera/launch/rs_launch.py
index 54901a2b4..4cf21382b 100644
--- a/realsense2_camera/launch/rs_launch.py
+++ b/realsense2_camera/launch/rs_launch.py
@@ -90,6 +90,7 @@
                            {'name': 'hdr_merge.enable',             'default': 'false', 'description': 'hdr_merge filter enablement flag'},
                            {'name': 'wait_for_device_timeout',      'default': '-1.', 'description': 'Timeout for waiting for device to connect (Seconds)'},
                            {'name': 'reconnect_timeout',            'default': '6.', 'description': 'Timeout(seconds) between consequtive reconnection attempts'},
+                           {'name': 'base_frame_id',                'default': 'link', 'description': 'Root frame of the sensors transform tree'},
                           ]
 
 def declare_configurable_parameters(parameters):