diff --git a/rmf_human_detector_oakd/launch/human_detector.launch.xml b/rmf_human_detector_oakd/launch/human_detector.launch.xml
index f045e43e..d148a9ab 100644
--- a/rmf_human_detector_oakd/launch/human_detector.launch.xml
+++ b/rmf_human_detector_oakd/launch/human_detector.launch.xml
@@ -3,7 +3,7 @@
 <launch>
   <arg name="blob_path" default="" description="The absolute filepath to the NN blob"/>
   <arg name="sync_nn" default="True" description="Whether to sync the depth and preview frames before making inference"/>
-  <arg name="detector_name" default="rmf_human_detector_oakd" description="The name given to this detector"/>
+  <arg name="detector_name" default="rmf_human_detector_oakd" description="The name given to this detector, used for obstacle topic's source value"/>
   <arg name="frame_id" default="oakd_camera_link" description="The frame ID for the camera"/>
   <arg name="level_name" default="L1" description="The level or map on which the camera is located"/>
   <arg name="obstacle_classification" default="human" description="The classification to be used to report human obstacles"/>
diff --git a/rmf_human_detector_oakd/src/HumanDetector.cpp b/rmf_human_detector_oakd/src/HumanDetector.cpp
index a7226a3b..9718acc0 100644
--- a/rmf_human_detector_oakd/src/HumanDetector.cpp
+++ b/rmf_human_detector_oakd/src/HumanDetector.cpp
@@ -270,7 +270,7 @@ HumanDetector::HumanDetector(
           obstacle.header.frame_id = data->frame_id;
           // TODO(YV): Stamp
           obstacle.id = obstacle_count;
-          obstacle.id = obstacle_count;
+          obstacle.source = data->detector_name;
           obstacle.level_name = data->level_name;
           obstacle.classification = data->obstacle_classification;
           obstacle.bbox.center.position.x = spatial_x;