diff --git a/nav2_loopback_sim/nav2_loopback_sim/loopback_simulator.py b/nav2_loopback_sim/nav2_loopback_sim/loopback_simulator.py
index 95f87eeb83..6ccab571c5 100644
--- a/nav2_loopback_sim/nav2_loopback_sim/loopback_simulator.py
+++ b/nav2_loopback_sim/nav2_loopback_sim/loopback_simulator.py
@@ -17,9 +17,9 @@
 
 from geometry_msgs.msg import PoseWithCovarianceStamped, Twist
 from geometry_msgs.msg import Quaternion, TransformStamped, Vector3
+from nav2_simple_commander.line_iterator import LineIterator
 from nav_msgs.msg import Odometry
 from nav_msgs.srv import GetMap
-from nav2_simple_commander.line_iterator import LineIterator
 import rclpy
 from rclpy.duration import Duration
 from rclpy.node import Node