diff --git a/launch/simulation.launch b/launch/simulation.launch
index 2b6bbf7..acbcd1b 100755
--- a/launch/simulation.launch
+++ b/launch/simulation.launch
@@ -1,6 +1,6 @@
 <launch>
     <arg name="initX" default="-7"/>
-    <arg name="initY" default="-3"/>
+    <arg name="initY" default="0"/>
     <arg name="initYaw" default="1.5708"/>
 
     <arg name="wit_wt901c_imu" default="true"/>
@@ -12,7 +12,7 @@
     <node name="robot_state_publisher" pkg="robot_state_publisher" type="robot_state_publisher" />
     <node name="joint_state_publisher" pkg="joint_state_publisher" type="joint_state_publisher" />
 
-    <param name="robot_description" command="$(find xacro)/xacro.py --inorder $(arg model) imu_enabled:=$(arg wit_wt901c_imu) sick_lms151_enabled:=$(arg sick_lms151) velodyne_enabled:=$(arg velodyne_vlp16)"/>
+    <param name="robot_description" command="$(find xacro)/xacro --inorder $(arg model) imu_enabled:=$(arg wit_wt901c_imu) sick_lms151_enabled:=$(arg sick_lms151) velodyne_enabled:=$(arg velodyne_vlp16)"/>
 
     <node name="urdf_spawner" pkg="gazebo_ros" type="spawn_model" respawn="false" output="screen"
       args="-urdf -model / -param robot_description -x $(arg initX) -y $(arg initY) -z 0.0 -R 0 -P 0 -Y $(arg initYaw)">