diff --git a/nav2_simple_commander/nav2_simple_commander/costmap_2d.py b/nav2_simple_commander/nav2_simple_commander/costmap_2d.py
index 1ae7e808b6..e84dec70d3 100644
--- a/nav2_simple_commander/nav2_simple_commander/costmap_2d.py
+++ b/nav2_simple_commander/nav2_simple_commander/costmap_2d.py
@@ -39,7 +39,8 @@ def __init__(self, occupancy_map):
 
         Args:
         ----
-            occupancy_map (OccupancyGrid): 2D OccupancyGrid Map
+            occupancy_map (OccupancyGrid):
+                2D OccupancyGrid Map
 
         """
         self.size_x = occupancy_map.info.width