diff --git a/API-ax5-util.md b/API-ax5-util.md
index 8573ccc..bcfce09 100644
--- a/API-ax5-util.md
+++ b/API-ax5-util.md
@@ -20,7 +20,7 @@ Javascript object type name is not clear. so util.getType() method is very usefu
 ## ax5.util.is*Type*()
 Return Boolean value depending on the correspondence of 'does the argument is this type?'.
 - argument : any type of variable.
-return : Boolean Value 1 || 0 (True || False)
+- return : Boolean Value 1 || 0 (True || False)
 
 ```js
 // return 1 || 0 (True || False)