diff --git a/planning/motion_velocity_smoother/launch/motion_velocity_smoother.launch.xml b/planning/motion_velocity_smoother/launch/motion_velocity_smoother.launch.xml
index 78bddc2b81f4f..86f767560fd7c 100644
--- a/planning/motion_velocity_smoother/launch/motion_velocity_smoother.launch.xml
+++ b/planning/motion_velocity_smoother/launch/motion_velocity_smoother.launch.xml
@@ -13,13 +13,13 @@
   <!-- Analytical, JerkFiltered, L2, or Linf -->
 
   <arg name="param_path" default="$(find-pkg-share motion_velocity_smoother)/config/default_motion_velocity_smoother.param.yaml"/>
-  <arg name="smoother_param_path" default="$(find-pkg-share motion_velocity_smoother)/config/$(var velocity_smoother_type).param.yaml"/>
+  <arg name="velocity_smoother_param_path" default="$(find-pkg-share motion_velocity_smoother)/config/$(var velocity_smoother_type).param.yaml"/>
 
   <node pkg="motion_velocity_smoother" exec="motion_velocity_smoother" name="motion_velocity_smoother" output="screen">
     <param from="$(var common_param_path)"/>
     <param from="$(var nearest_search_param_path)"/>
     <param from="$(var param_path)"/>
-    <param from="$(var smoother_param_path)"/>
+    <param from="$(var velocity_smoother_param_path)"/>
     <param name="publish_debug_trajs" value="$(var publish_debug_trajs)"/>
     <param name="algorithm_type" value="$(var velocity_smoother_type)"/>
     <remap from="~/input/trajectory" to="$(var input_trajectory)"/>