diff --git a/autoware_launch/config/perception/object_recognition/tracking/tracking_object_merger/decorative_tracker_merger.param.yaml b/autoware_launch/config/perception/object_recognition/tracking/tracking_object_merger/decorative_tracker_merger.param.yaml
index e4ea2becd7..5286206876 100644
--- a/autoware_launch/config/perception/object_recognition/tracking/tracking_object_merger/decorative_tracker_merger.param.yaml
+++ b/autoware_launch/config/perception/object_recognition/tracking/tracking_object_merger/decorative_tracker_merger.param.yaml
@@ -2,6 +2,7 @@
 /**:
   ros__parameters:
     base_link_frame_id: "base_link"
+    merge_frame_id: "map"
     time_sync_threshold: 0.999
     sub_object_timeout_sec: 0.8
     publish_interpolated_sub_objects: true #for debug