diff --git a/example_10/test/test_rrbot_launch.py b/example_10/test/test_rrbot_launch.py
index 45c8227d1..7bbb8db51 100644
--- a/example_10/test/test_rrbot_launch.py
+++ b/example_10/test/test_rrbot_launch.py
@@ -39,7 +39,7 @@
 from launch.launch_description_sources import PythonLaunchDescriptionSource
 from launch_testing.actions import ReadyToTest
 
-# import launch_testing.markers
+import launch_testing
 import rclpy
 from rclpy.node import Node
 from ros2_control_demo_testing.test_utils import check_controllers_running, check_if_js_published