diff --git a/demos/widget/default.html b/demos/widget/default.html
index 4dad912c2..7c6d766e5 100644
--- a/demos/widget/default.html
+++ b/demos/widget/default.html
@@ -50,7 +50,7 @@
 
 				this.changer = $( "<button>", {
 					text: "change",
-					className: "custom-colorize-changer"
+					"class": "custom-colorize-changer"
 				})
 				.appendTo( this.element )
 				.button();