diff --git a/launch/tier4_localization_launch/launch/localization.launch.xml b/launch/tier4_localization_launch/launch/localization.launch.xml
index 550c9b5ff7fff..8538179253480 100644
--- a/launch/tier4_localization_launch/launch/localization.launch.xml
+++ b/launch/tier4_localization_launch/launch/localization.launch.xml
@@ -14,7 +14,7 @@
   <arg name="pose_initializer_param_path"/>
   <arg name="eagleye_param_path"/>
 
-  <arg name="input/pointcloud" default="/sensing/lidar/top/outlier_filtered/pointcloud" description="The topic will be used in the localization util module"/>
+  <arg name="input_pointcloud" default="/sensing/lidar/top/outlier_filtered/pointcloud"/>
   <arg name="use_pointcloud_container" default="true" description="launch pointcloud container"/>
   <arg name="pointcloud_container_name" default="pointcloud_container"/>
 
diff --git a/launch/tier4_localization_launch/launch/util/util.launch.py b/launch/tier4_localization_launch/launch/util/util.launch.py
index ef9f25e43cf90..1a34429f438ed 100644
--- a/launch/tier4_localization_launch/launch/util/util.launch.py
+++ b/launch/tier4_localization_launch/launch/util/util.launch.py
@@ -34,7 +34,7 @@ def load_composable_node_param(param_path):
         plugin="pointcloud_preprocessor::CropBoxFilterComponent",
         name="crop_box_filter_measurement_range",
         remappings=[
-            ("input", LaunchConfiguration("input/pointcloud")),
+            ("input", LaunchConfiguration("input_pointcloud")),
             ("output", "measurement_range/pointcloud"),
         ],
         parameters=[