diff --git a/src/core/graphics/Graphics.js b/src/core/graphics/Graphics.js
index d0a9083..3915985 100644
--- a/src/core/graphics/Graphics.js
+++ b/src/core/graphics/Graphics.js
@@ -676,6 +676,13 @@
     return this;
 };
 
+/**
+ * True if graphics consists of one rectangle, and thus, can be drawn like a Sprite and masked with gl.scissor
+ * @returns {boolean}
+ */
+Graphics.prototype.isFastRect = function() {
+    return this.graphicsData.length === 1 && this.graphicsData[0].shape.type === CONST.SHAPES.RECT && !this.graphicsData[0].lineWidth;
+};
 
 /**
  * Renders the object using the WebGL renderer
@@ -691,7 +698,7 @@
     {
         this.dirty = true;
         this.glDirty = false;
-        this._fastRect = this.graphicsData.length === 1 && this.graphicsData[0].shape.type === CONST.SHAPES.RECT && !this.graphicsData[0].lineWidth;
+        this._fastRect = this.isFastRect();
     }
 
     //TODO this check can be moved to dirty?

diff --git a/src/core/graphics/Graphics.js b/src/core/graphics/Graphics.js
index d0a9083..3915985 100644
--- a/src/core/graphics/Graphics.js
+++ b/src/core/graphics/Graphics.js
@@ -676,6 +676,13 @@
     return this;
 };
 
+/**
+ * True if graphics consists of one rectangle, and thus, can be drawn like a Sprite and masked with gl.scissor
+ * @returns {boolean}
+ */
+Graphics.prototype.isFastRect = function() {
+    return this.graphicsData.length === 1 && this.graphicsData[0].shape.type === CONST.SHAPES.RECT && !this.graphicsData[0].lineWidth;
+};
 
 /**
  * Renders the object using the WebGL renderer
@@ -691,7 +698,7 @@
     {
         this.dirty = true;
         this.glDirty = false;
-        this._fastRect = this.graphicsData.length === 1 && this.graphicsData[0].shape.type === CONST.SHAPES.RECT && !this.graphicsData[0].lineWidth;
+        this._fastRect = this.isFastRect();
     }
 
     //TODO this check can be moved to dirty?
diff --git a/src/core/renderers/webgl/managers/MaskManager.js b/src/core/renderers/webgl/managers/MaskManager.js
index 6aa6d83..c0332b3 100644
--- a/src/core/renderers/webgl/managers/MaskManager.js
+++ b/src/core/renderers/webgl/managers/MaskManager.js
@@ -29,7 +29,7 @@
  * Applies the Mask and adds it to the current filter stack.
  *
  * @param target {PIXI.DisplayObject} Display Object to push the mask to
- * @param maskData {Array<*>}
+ * @param maskData {PIXI.Sprite|PIXI.Graphics}
  */
 MaskManager.prototype.pushMask = function (target, maskData)
 {
@@ -39,7 +39,7 @@
     }
     else
     {
-        if(this.enableScissor && !this.scissor && !this.renderer.stencilManager.stencilMaskStack.length && maskData.graphicsData[0].shape.type === 1)
+        if(this.enableScissor && !this.scissor && !this.renderer.stencilManager.stencilMaskStack.length && maskData.isFastRect())
         {
             var matrix = maskData.worldTransform;