diff --git a/autoware_launch/config/perception/obstacle_segmentation/ground_segmentation/ground_segmentation.param.yaml b/autoware_launch/config/perception/obstacle_segmentation/ground_segmentation/ground_segmentation.param.yaml
index f2be6aeb8b..3f33218eb3 100644
--- a/autoware_launch/config/perception/obstacle_segmentation/ground_segmentation/ground_segmentation.param.yaml
+++ b/autoware_launch/config/perception/obstacle_segmentation/ground_segmentation/ground_segmentation.param.yaml
@@ -30,6 +30,7 @@
         detection_range_z_max: 2.5
         elevation_grid_mode: true
         use_recheck_ground_cluster: true
+        use_lowest_point: true
         low_priority_region_x: -20.0
         center_pcl_shift: 0.0
         radial_divider_angle_deg: 1.0