diff --git a/launch/scan_to_pcl.launch b/launch/scan_to_pcl.launch
index e860ae7..f611623 100644
--- a/launch/scan_to_pcl.launch
+++ b/launch/scan_to_pcl.launch
@@ -1,8 +1,9 @@
 <?xml version="1.0"?>
 <launch>
+    <arg name="output" default="log" doc="screen or log"/>
     <arg name="frame_id" default="base_scan"/>
     <arg name="cloud_topic" default="/cloud"/>
-    <node pkg="scan_to_pcl_ros" type="scan_to_pcl_node" name="scan_to_pcl" output="screen">
+    <node pkg="scan_to_pcl_ros" type="scan_to_pcl_node" name="scan_to_pcl" output="$(arg output)">
         <param name="frame_id" value="$(arg frame_id)"/>
         <remap from="/cloud" to="$(arg cloud_topic)"/>
     </node>
diff --git a/launch/test.launch b/launch/test.launch
index 9bbb122..d5bbf16 100644
--- a/launch/test.launch
+++ b/launch/test.launch
@@ -2,7 +2,9 @@
 <launch>
     <arg name="rviz_path" default="$(find scan_to_pcl_ros)/launch/rviz.rviz"/>
 
-    <include file="$(find scan_to_pcl_ros)/launch/scan_to_pcl.launch"/>
+    <include file="$(find scan_to_pcl_ros)/launch/scan_to_pcl.launch">
+        <arg name="output" value="screen"/>
+    </include>
 
     <include file="$(find turtlebot3_gazebo)/launch/turtlebot3_world.launch"/>
     <node pkg="rviz" type="rviz" name="rviz" args="-d $(arg rviz_path)"/>