diff --git a/ros_web_api_bellande_step/launch/bellande_step_api_2d.launch.py b/ros_web_api_bellande_step/launch/bellande_step_api_2d.launch.py
index b13fc23..3b3bdcc 100644
--- a/ros_web_api_bellande_step/launch/bellande_step_api_2d.launch.py
+++ b/ros_web_api_bellande_step/launch/bellande_step_api_2d.launch.py
@@ -1,6 +1,7 @@
 import os
 import sys
 import subprocess
+from launch import LaunchDescription
 from launch_ros.actions import Node
 from launch.actions import DeclareLaunchArgument
 from launch.substitutions import LaunchConfiguration
@@ -11,7 +12,7 @@ def ros1_launch_description():
     args = sys.argv[1:]
 
     # Construct the ROS 1 launch command
-    roslaunch_command = ["roslaunch", "ros_web_api_bellande_step", "bellande_step_api_2d.launch"] + args
+    roslaunch_command = ["roslaunch", "ros_web_api_bellande_step", "bellande_step_api_2d.py"] + args
 
     # Execute the launch command
     subprocess.call(roslaunch_command)