diff --git a/src/core/display/DisplayObject.js b/src/core/display/DisplayObject.js
index 3affe36..4e6c77d 100644
--- a/src/core/display/DisplayObject.js
+++ b/src/core/display/DisplayObject.js
@@ -109,7 +109,7 @@
         /**
          * The original, cached mask of the object
          *
-         * @member {PIXI.Rectangle}
+         * @member {PIXI.Graphics|PIXI.Sprite}
          * @private
          */
         this._mask = null;