diff --git a/tests/unit/progressbar/progressbar_common.js b/tests/unit/progressbar/progressbar_common.js
index 2f97a78bb..ceee3fbec 100644
--- a/tests/unit/progressbar/progressbar_common.js
+++ b/tests/unit/progressbar/progressbar_common.js
@@ -5,6 +5,8 @@ TestHelpers.commonWidgetTests( "progressbar", {
 		max: 100,
 
 		//callbacks
+		change: null,
+		complete: null,
 		create: null
 	}
 });
diff --git a/ui/jquery.ui.progressbar.js b/ui/jquery.ui.progressbar.js
index 0f97bc3fe..53c9508ed 100644
--- a/ui/jquery.ui.progressbar.js
+++ b/ui/jquery.ui.progressbar.js
@@ -17,8 +17,11 @@
 $.widget( "ui.progressbar", {
 	version: "@VERSION",
 	options: {
+		max: 100,
 		value: 0,
-		max: 100
+
+		change: null,
+		complete: null
 	},
 
 	min: 0,