diff --git a/aip_x1_1_launch/config/ground_segmentation/ground_segmentation.param.yaml b/aip_x1_1_launch/config/ground_segmentation/ground_segmentation.param.yaml
index 0a4a0e23..9ff8500f 100644
--- a/aip_x1_1_launch/config/ground_segmentation/ground_segmentation.param.yaml
+++ b/aip_x1_1_launch/config/ground_segmentation/ground_segmentation.param.yaml
@@ -13,6 +13,7 @@
         max_x: 100.0
         min_y: -50.0
         max_y: 50.0
+        max_z: 2.5
         min_z: -0.5
         negative: False