diff --git a/DPI/local_dm_control_suite/walker.xml b/DPI/local_dm_control_suite/walker.xml
index 9509893..d87ae82 100755
--- a/DPI/local_dm_control_suite/walker.xml
+++ b/DPI/local_dm_control_suite/walker.xml
@@ -19,7 +19,7 @@
   </default>
 
   <worldbody>
-    <geom name="floor" type="plane" conaffinity="1" pos="248 0 0" size="250 .8 .2" material="grid" zaxis="0 0 1"/>
+    <geom name="floor" type="plane" conaffinity="1" pos="248 0 0" size="250 .8 .2" material="grid" zaxis="0 0 1" rgba="0 0 0 0"/>
     <body name="torso" pos="0 0 1.3" childclass="walker">
       <light name="light" pos="0 0 2" mode="trackcom"/>
       <camera name="side" pos="0 -2 .7" euler="60 0 0" mode="trackcom"/>
