diff --git a/src/core/renderers/webgl/managers/MaskManager.js b/src/core/renderers/webgl/managers/MaskManager.js
index aad715a..fe3473b 100644
--- a/src/core/renderers/webgl/managers/MaskManager.js
+++ b/src/core/renderers/webgl/managers/MaskManager.js
@@ -110,10 +110,11 @@
         alphaMaskFilter[0].resolution = this.renderer.resolution;
         alphaMaskFilter[0].maskSprite = maskData;
 
-        // TODO - may cause issues!
-        target.filterArea = maskData.getBounds(true);
+        const stashFilterArea = target.filterArea;
 
+        target.filterArea = maskData.getBounds(true);
         this.renderer.filterManager.pushFilter(target, alphaMaskFilter);
+        target.filterArea = stashFilterArea;
 
         this.alphaMaskIndex++;
     }