diff --git a/description/robot_core.xacro b/description/robot_core.xacro
index 78771c8..6059663 100644
--- a/description/robot_core.xacro
+++ b/description/robot_core.xacro
@@ -236,7 +236,7 @@
     <link name="laser_frame">
         <visual>
             <geometry>
-                <sphere radius="${caster_wheel_radius}"/>
+                <cylinder radius="0.04" length="0.05"/>
             </geometry>
             <material name="white"/>
         </visual>