diff --git a/urdf/teltonika_003R-00253.urdf.xacro b/urdf/teltonika_003R-00253.urdf.xacro
index ec3578c..e04a5d8 100644
--- a/urdf/teltonika_003R-00253.urdf.xacro
+++ b/urdf/teltonika_003R-00253.urdf.xacro
@@ -76,7 +76,7 @@
         <always_on>1</always_on>
         <update_rate>1</update_rate>
         <topic>${ns}${device_namespace}/fix</topic>
-        <ignition_frame_id>${prefix}gps</ignition_frame_id>
+        <ignition_frame_id>${ns}${prefix}gps</ignition_frame_id>
       </sensor>
     </gazebo>
   </xacro:macro>