diff --git a/nav2_bringup/params/nav2_multirobot_params_all.yaml b/nav2_bringup/params/nav2_multirobot_params_all.yaml
index 4bde87b47d..c606113e5d 100644
--- a/nav2_bringup/params/nav2_multirobot_params_all.yaml
+++ b/nav2_bringup/params/nav2_multirobot_params_all.yaml
@@ -315,7 +315,7 @@ collision_monitor:
     FootprintApproach:
       type: "polygon"
       action_type: "approach"
-      footprint_topic: "/local_costmap/published_footprint"
+      footprint_topic: "/<robot_namespace>/local_costmap/published_footprint"
       time_before_collision: 2.0
       simulation_time_step: 0.1
       min_points: 6