diff --git a/ros2_launch_marcel.desktop b/ros2_launch_marcel.desktop
new file mode 100644
index 0000000..a1ae8fe
--- /dev/null
+++ b/ros2_launch_marcel.desktop
@@ -0,0 +1,8 @@
+[Desktop Entry]
+Type=Application
+Name=Lancer ROS 2
+Comment=Lance le système ROS 2 avec GUI
+Exec=/home/modelec/modelec-serge-ROS/start_ros2.sh
+Icon=utilities-terminal
+Terminal=true
+Categories=Utility;
diff --git a/start_ros2.sh b/start_ros2.sh
index 2f7de70..3ea80cc 100755
--- a/start_ros2.sh
+++ b/start_ros2.sh
@@ -4,8 +4,6 @@ set -e
 export DISPLAY=:0
 export XAUTHORITY=/home/modelec/.Xauthority
 
-xhost +SI:localuser:modelec
-
 source /opt/ros/jazzy/setup.bash
 source /home/modelec/modelec-serge-ROS/install/setup.bash