diff --git a/getting_started/index.rst b/getting_started/index.rst
index 3bef8de..5fbe288 100644
--- a/getting_started/index.rst
+++ b/getting_started/index.rst
@@ -163,7 +163,7 @@ You can launch it in a new terminal after starting the EasyNav system:
 
 .. code-block:: bash
 
-   ros2 run easynav_system tui
+   ros2 run easynav_tools tui
 
 The TUI is divided into several panels:
 
diff --git a/howtos/costmap_multirobot.rst b/howtos/costmap_multirobot.rst
index 6b943dc..f06cb77 100644
--- a/howtos/costmap_multirobot.rst
+++ b/howtos/costmap_multirobot.rst
@@ -142,7 +142,7 @@ Each instance uses the same parameter file but with its own namespace and TF rem
    ros2 run easynav_system system_main \
      --ros-args \
      --params-file ~/ros/ros2/easynav_ws/src/easynav_indoor_testcase/robots_params/costmap_multirobot.params.yaml \
-     -r __ns:=r1 \
+     -r __ns:=/r1 \
      -r /tf:=tf -r /tf_static:=tf_static
 
 **Terminal 2 (robot r2):**
@@ -152,7 +152,7 @@ Each instance uses the same parameter file but with its own namespace and TF rem
    ros2 run easynav_system system_main \
      --ros-args \
      --params-file ~/ros/ros2/easynav_ws/src/easynav_indoor_testcase/robots_params/costmap_multirobot.params.yaml \
-     -r __ns:=r2 \
+     -r __ns:=/r2 \
      -r /tf:=tf -r /tf_static:=tf_static
 
 ---