diff --git a/urdf/sensors/lightsens.urdf.xacro b/urdf/sensors/lightsens.urdf.xacro
index b0228ba..681b1fd 100644
--- a/urdf/sensors/lightsens.urdf.xacro
+++ b/urdf/sensors/lightsens.urdf.xacro
@@ -16,8 +16,8 @@
         <geometry>
           <box size="0.01 0.005 0.007" />
         </geometry>
-        <material name="Gray">
-          <color rgba="0.2 0.2 0.2 1" />
+        <material name="Red">
+          <color rgba="1.0 0.0 0.0 1" />
         </material>
       </visual>
       <inertial>