diff --git a/doc/index.rst b/doc/index.rst
index 63960b3c..6591c050 100644
--- a/doc/index.rst
+++ b/doc/index.rst
@@ -248,7 +248,6 @@ When the Gazebo world is launched you can run some of the following commands to
 
 The following example shows a parallel gripper with a mimic joint:
 
-
 .. code-block:: shell
 
   ros2 launch gazebo_ros2_control_demos gripper_mimic_joint_example_position.launch.py
diff --git a/gazebo_ros2_control_demos/launch/gripper_mimic_joint_example_position.launch.py b/gazebo_ros2_control_demos/launch/gripper_mimic_joint_example_position.launch.py
index 4247ac4d..e3bd512f 100644
--- a/gazebo_ros2_control_demos/launch/gripper_mimic_joint_example_position.launch.py
+++ b/gazebo_ros2_control_demos/launch/gripper_mimic_joint_example_position.launch.py
@@ -1,4 +1,4 @@
-# Copyright 2022 Stogl Robotics Consulting UG (haftungsbeschränkt)
+# Copyright 2024 Stogl Robotics Consulting UG (haftungsbeschränkt)
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.