diff --git a/README.md b/README.md
index 08333505700438d10ee59145ecb17345e4e3224b..1e079634953ad197fe24cbc0abae0fd870d276fa 100644
--- a/README.md
+++ b/README.md
@@ -92,7 +92,7 @@
 
 ```javascript
 	pickerData = [1,2,3,4];
-	selectedValue = 3;
+	selectedValue = [3];
 ```
 
 - two or more wheel: