diff --git a/src/core/renderers/webgl/systems/StencilSystem.js b/src/core/renderers/webgl/systems/StencilSystem.js
index 5c4ca3f..3843739 100644
--- a/src/core/renderers/webgl/systems/StencilSystem.js
+++ b/src/core/renderers/webgl/systems/StencilSystem.js
@@ -125,6 +125,6 @@
     {
         super.destroy(this);
 
-        this.stencilMaskStack.stencilStack = null;
+        this.stencilMaskStack = null;
     }
 }