diff --git a/autoware_launch/config/planning/scenario_planning/lane_driving/motion_planning/obstacle_cruise_planner/obstacle_cruise_planner.param.yaml b/autoware_launch/config/planning/scenario_planning/lane_driving/motion_planning/obstacle_cruise_planner/obstacle_cruise_planner.param.yaml
index db8a0ad690..504623b98d 100644
--- a/autoware_launch/config/planning/scenario_planning/lane_driving/motion_planning/obstacle_cruise_planner/obstacle_cruise_planner.param.yaml
+++ b/autoware_launch/config/planning/scenario_planning/lane_driving/motion_planning/obstacle_cruise_planner/obstacle_cruise_planner.param.yaml
@@ -88,7 +88,7 @@
 
       stop:
         max_lat_margin: 0.3 # lateral margin between the obstacles and ego's footprint
-        max_lat_margin_against_unknown: -0.3 # lateral margin between the unknown obstacles and ego's footprint
+        max_lat_margin_against_unknown: 0.3 # lateral margin between the unknown obstacles and ego's footprint
         crossing_obstacle:
           collision_time_margin : 4.0 # time threshold of collision between obstacle adn ego for cruise or stop [s]