diff --git a/launch/sample.launch b/launch/sample.launch
index baffe7b..2dcb6d9 100644
--- a/launch/sample.launch
+++ b/launch/sample.launch
@@ -13,6 +13,7 @@
   <arg name="vocabulary" default="lvis" />
   <arg name="custom_vocabulary" default="" />
   <arg name="output_highest" default="false" />
+  <arg name="use_jsk_msgs" default="false" />
 
   <arg name="_input_image" default="/$(arg namespace)/decompressed_image" if="$(arg compressed)"/>
   <arg name="_input_image" default="$(arg input_image)" unless="$(arg compressed)"/>
@@ -38,6 +39,7 @@
     <param name="vocabulary" value="$(arg vocabulary)" />
     <param name="custom_vocabulary" value="$(arg custom_vocabulary)" />
     <param name="output_highest" value="$(arg output_highest)" />
+    <param name="use_jsk_msgs" value="$(arg use_jsk_msgs)" />
     </node>
   </group>
 </launch>