diff --git a/documents/ros-config.md b/documents/ros-config.md
index 92306c2..295327d 100644
--- a/documents/ros-config.md
+++ b/documents/ros-config.md
@@ -8,13 +8,13 @@ ros-config - get and set options
 
 Without any arguments, it shows all variables and it's value.
 
-show VAR
- 
-  : set the VALUE to the TARGET.
+show TARGET
+
+  : show TARGET.
 
 
-set VAR VALUE
- 
+set TARGET VALUE
+
   : set the VALUE to the TARGET.
 
 <!-- # options -->