diff --git a/packages/display/src/DisplayObject.js b/packages/display/src/DisplayObject.js
index 087a8cb..bf9d3ac 100644
--- a/packages/display/src/DisplayObject.js
+++ b/packages/display/src/DisplayObject.js
@@ -589,6 +589,7 @@
         if (this._mask)
         {
             this._mask.renderable = true;
+            this._mask.isMask = false;
         }
 
         this._mask = value;
@@ -596,6 +597,7 @@
         if (this._mask)
         {
             this._mask.renderable = false;
+            this._mask.isMask = true;
         }
     }