diff --git a/autoware_launch/config/perception/object_recognition/detection/detected_object_validation/obstacle_pointcloud_based_validator.param.yaml b/autoware_launch/config/perception/object_recognition/detection/detected_object_validation/obstacle_pointcloud_based_validator.param.yaml
index 22999b411f..b98f8adfb5 100644
--- a/autoware_launch/config/perception/object_recognition/detection/detected_object_validation/obstacle_pointcloud_based_validator.param.yaml
+++ b/autoware_launch/config/perception/object_recognition/detection/detected_object_validation/obstacle_pointcloud_based_validator.param.yaml
@@ -11,3 +11,5 @@
     min_points_and_distance_ratio:
     #UNKNOWN, CAR, TRUCK, BUS, TRAILER, MOTORBIKE, BICYCLE, PEDESTRIAN
       [800.0,     880.0,     800.0,    800.0,         800.0, 800.0,    800.0,         800.0]
+
+    using_2d_validator: true