diff --git a/nav2_simple_commander/nav2_simple_commander/costmap_2d.py b/nav2_simple_commander/nav2_simple_commander/costmap_2d.py
index e84dec70d3..21dd305db2 100644
--- a/nav2_simple_commander/nav2_simple_commander/costmap_2d.py
+++ b/nav2_simple_commander/nav2_simple_commander/costmap_2d.py
@@ -38,8 +38,7 @@ def __init__(self, occupancy_map):
         Initialize costmap2D.
 
         Args:
-        ----
-            occupancy_map (OccupancyGrid):
+            occupancy_map (nav_msgs/OccupancyGrid):
                 2D OccupancyGrid Map
 
         """