diff --git a/src/pixi/filters/ColorStepFilter.js b/src/pixi/filters/ColorStepFilter.js
index ebf040b..d891db8 100644
--- a/src/pixi/filters/ColorStepFilter.js
+++ b/src/pixi/filters/ColorStepFilter.js
@@ -6,7 +6,7 @@
 /**
  * 
  * This turns your displayObjects to black and white.
- * @class GreyFilter
+ * @class ColorStepFilter
  * @contructor
  */
 PIXI.ColorStepFilter = function()

diff --git a/src/pixi/filters/ColorStepFilter.js b/src/pixi/filters/ColorStepFilter.js
index ebf040b..d891db8 100644
--- a/src/pixi/filters/ColorStepFilter.js
+++ b/src/pixi/filters/ColorStepFilter.js
@@ -6,7 +6,7 @@
 /**
  * 
  * This turns your displayObjects to black and white.
- * @class GreyFilter
+ * @class ColorStepFilter
  * @contructor
  */
 PIXI.ColorStepFilter = function()
diff --git a/src/pixi/filters/GrayFilter.js b/src/pixi/filters/GrayFilter.js
new file mode 100644
index 0000000..a39888f
--- /dev/null
+++ b/src/pixi/filters/GrayFilter.js
@@ -0,0 +1,51 @@
+/**
+ * @author Mat Groves http://matgroves.com/ @Doormat23
+ */
+
+
+/**
+ * 
+ * This turns your displayObjects to black and white.
+ * @class GrayFilter
+ * @contructor
+ */
+PIXI.GrayFilter = function()
+{
+	PIXI.AbstractFilter.call( this );
+	
+	this.passes = [this];
+	
+	// set the uniforms
+	this.uniforms = {
+		gray: {type: 'f', value: 1},
+	};
+	
+	this.fragmentSrc = [
+	  "precision mediump float;",
+	  "varying vec2 vTextureCoord;",
+	  "varying float vColor;",
+	  "uniform sampler2D uSampler;",
+	  "uniform float gray;",
+	  "void main(void) {",
+	    "gl_FragColor = texture2D(uSampler, vTextureCoord);",
+		"gl_FragColor.rgb = mix(gl_FragColor.rgb, vec3(0.2126*gl_FragColor.r + 0.7152*gl_FragColor.g + 0.0722*gl_FragColor.b), gray);",
+	    "gl_FragColor = gl_FragColor * vColor;",
+	  "}"
+	];
+}
+
+PIXI.GrayFilter.prototype = Object.create( PIXI.AbstractFilter.prototype );
+PIXI.GrayFilter.prototype.constructor = PIXI.GrayFilter;
+
+/**
+The strength of the gray. 1 will make the object black and white, 0 will make the object its normal color
+@property gray
+*/
+Object.defineProperty(PIXI.GrayFilter.prototype, 'gray', {
+    get: function() {
+        return this.uniforms.gray.value;
+    },
+    set: function(value) {
+    	this.uniforms.gray.value = value;
+    }
+});

diff --git a/src/pixi/filters/ColorStepFilter.js b/src/pixi/filters/ColorStepFilter.js
index ebf040b..d891db8 100644
--- a/src/pixi/filters/ColorStepFilter.js
+++ b/src/pixi/filters/ColorStepFilter.js
@@ -6,7 +6,7 @@
 /**
  * 
  * This turns your displayObjects to black and white.
- * @class GreyFilter
+ * @class ColorStepFilter
  * @contructor
  */
 PIXI.ColorStepFilter = function()
diff --git a/src/pixi/filters/GrayFilter.js b/src/pixi/filters/GrayFilter.js
new file mode 100644
index 0000000..a39888f
--- /dev/null
+++ b/src/pixi/filters/GrayFilter.js
@@ -0,0 +1,51 @@
+/**
+ * @author Mat Groves http://matgroves.com/ @Doormat23
+ */
+
+
+/**
+ * 
+ * This turns your displayObjects to black and white.
+ * @class GrayFilter
+ * @contructor
+ */
+PIXI.GrayFilter = function()
+{
+	PIXI.AbstractFilter.call( this );
+	
+	this.passes = [this];
+	
+	// set the uniforms
+	this.uniforms = {
+		gray: {type: 'f', value: 1},
+	};
+	
+	this.fragmentSrc = [
+	  "precision mediump float;",
+	  "varying vec2 vTextureCoord;",
+	  "varying float vColor;",
+	  "uniform sampler2D uSampler;",
+	  "uniform float gray;",
+	  "void main(void) {",
+	    "gl_FragColor = texture2D(uSampler, vTextureCoord);",
+		"gl_FragColor.rgb = mix(gl_FragColor.rgb, vec3(0.2126*gl_FragColor.r + 0.7152*gl_FragColor.g + 0.0722*gl_FragColor.b), gray);",
+	    "gl_FragColor = gl_FragColor * vColor;",
+	  "}"
+	];
+}
+
+PIXI.GrayFilter.prototype = Object.create( PIXI.AbstractFilter.prototype );
+PIXI.GrayFilter.prototype.constructor = PIXI.GrayFilter;
+
+/**
+The strength of the gray. 1 will make the object black and white, 0 will make the object its normal color
+@property gray
+*/
+Object.defineProperty(PIXI.GrayFilter.prototype, 'gray', {
+    get: function() {
+        return this.uniforms.gray.value;
+    },
+    set: function(value) {
+    	this.uniforms.gray.value = value;
+    }
+});
diff --git a/src/pixi/filters/GreyFilter.js b/src/pixi/filters/GreyFilter.js
deleted file mode 100644
index d182975..0000000
--- a/src/pixi/filters/GreyFilter.js
+++ /dev/null
@@ -1,51 +0,0 @@
-/**
- * @author Mat Groves http://matgroves.com/ @Doormat23
- */
-
-
-/**
- * 
- * This turns your displayObjects to black and white.
- * @class GreyFilter
- * @contructor
- */
-PIXI.GreyFilter = function()
-{
-	PIXI.AbstractFilter.call( this );
-	
-	this.passes = [this];
-	
-	// set the uniforms
-	this.uniforms = {
-		grey: {type: 'f', value: 1},
-	};
-	
-	this.fragmentSrc = [
-	  "precision mediump float;",
-	  "varying vec2 vTextureCoord;",
-	  "varying float vColor;",
-	  "uniform sampler2D uSampler;",
-	  "uniform float grey;",
-	  "void main(void) {",
-	    "gl_FragColor = texture2D(uSampler, vTextureCoord);",
-		"gl_FragColor.rgb = mix(gl_FragColor.rgb, vec3(0.2126*gl_FragColor.r + 0.7152*gl_FragColor.g + 0.0722*gl_FragColor.b), grey);",
-	    "gl_FragColor = gl_FragColor * vColor;",
-	  "}"
-	];
-}
-
-PIXI.GreyFilter.prototype = Object.create( PIXI.AbstractFilter.prototype );
-PIXI.GreyFilter.prototype.constructor = PIXI.GreyFilter;
-
-/**
-The strength of the grey. 1 will make the object black and white, 0 will make the object its normal color
-@property grey
-*/
-Object.defineProperty(PIXI.GreyFilter.prototype, 'grey', {
-    get: function() {
-        return this.uniforms.grey.value;
-    },
-    set: function(value) {
-    	this.uniforms.grey.value = value;
-    }
-});