diff --git a/typescript/phaser.d.ts b/typescript/phaser.d.ts
index d896cb088..2ba7b400a 100644
--- a/typescript/phaser.d.ts
+++ b/typescript/phaser.d.ts
@@ -1183,7 +1183,7 @@ declare module Phaser {
         time: Phaser.Time;
         transparent: boolean;
         tweens: Phaser.TweenManager;
-        updateNumber: number;
+        currentUpdateID: number;
         updatesThisFrame: number;
         width: number;
         world: Phaser.World;