diff --git a/typescript/phaser.comments.d.ts b/typescript/phaser.comments.d.ts
index 2a90b88a3..61fd4e84a 100644
--- a/typescript/phaser.comments.d.ts
+++ b/typescript/phaser.comments.d.ts
@@ -1193,7 +1193,7 @@ declare module Phaser {
         * @param roundPx Should the x and y values be rounded to integers before drawing? This prevents anti-aliasing in some instances. - Default: false
         * @return This BitmapData object for method chaining.
         */
-        copy(source?: any, x?: number, y?: number, width?: number, height?: number, tx?: number, ty?: number, newWidth?: number, newHeight?: number, rotate?: number, anchorX?: number, anchorY?: number, scaleX?: number, scaleY?: number, alpha?: number, blendMode?: number, roundPx?: boolean): Phaser.BitmapData;
+        copy(source?: any, x?: number, y?: number, width?: number, height?: number, tx?: number, ty?: number, newWidth?: number, newHeight?: number, rotate?: number, anchorX?: number, anchorY?: number, scaleX?: number, scaleY?: number, alpha?: number, blendMode?: string, roundPx?: boolean): Phaser.BitmapData;
         copyPixels(source: any, area: Phaser.Rectangle, x: number, y: number, alpha?: number): void;
 
         /**
@@ -1208,7 +1208,7 @@ declare module Phaser {
         * @param roundPx Should the x and y values be rounded to integers before drawing? This prevents anti-aliasing in some instances. - Default: false
         * @return This BitmapData object for method chaining.
         */
-        copyRect(source: any, area: Phaser.Rectangle, x?: number, y?: number, alpha?: number, blendMode?: number, roundPx?: boolean): Phaser.BitmapData;
+        copyRect(source: any, area: Phaser.Rectangle, x?: number, y?: number, alpha?: number, blendMode?: string, roundPx?: boolean): Phaser.BitmapData;
 
         /**
         * Draws the given Phaser.Sprite, Phaser.Image or Phaser.Text to this BitmapData at the coordinates specified.
@@ -1224,7 +1224,7 @@ declare module Phaser {
         * @param roundPx Should the x and y values be rounded to integers before drawing? This prevents anti-aliasing in some instances. - Default: false
         * @return This BitmapData object for method chaining.
         */
-        draw(source: any, x?: number, y?: number, width?: number, height?: number, blendMode?: number, roundPx?: boolean): Phaser.BitmapData;
+        draw(source: any, x?: number, y?: number, width?: number, height?: number, blendMode?: string, roundPx?: boolean): Phaser.BitmapData;
 
         /**
         * Draws the Game Object or Group to this BitmapData and then recursively iterates through all of its children.
@@ -1254,7 +1254,7 @@ declare module Phaser {
         * @param roundPx Should the x and y values be rounded to integers before drawing? This prevents anti-aliasing in some instances. - Default: false
         * @return This BitmapData object for method chaining.
         */
-        drawGroup(group: Phaser.Group, blendMode?: number, roundPx?: boolean): Phaser.BitmapData;
+        drawGroup(group: Phaser.Group, blendMode?: string, roundPx?: boolean): Phaser.BitmapData;
 
         /**
         * Scans this BitmapData for all pixels matching the given r,g,b values and then draws them into the given destination BitmapData.
diff --git a/typescript/phaser.d.ts b/typescript/phaser.d.ts
index a0f46fff4..3fa682895 100644
--- a/typescript/phaser.d.ts
+++ b/typescript/phaser.d.ts
@@ -247,13 +247,13 @@ declare module Phaser {
         circle(x: number, y: number, radius: number, fillStyle?: string): Phaser.BitmapData;
         clear(x?: number, y?: number, width?: number, height?: number): Phaser.BitmapData;
         cls(): Phaser.BitmapData;
-        copy(source?: any, x?: number, y?: number, width?: number, height?: number, tx?: number, ty?: number, newWidth?: number, newHeight?: number, rotate?: number, anchorX?: number, anchorY?: number, scaleX?: number, scaleY?: number, alpha?: number, blendMode?: number, roundPx?: boolean): Phaser.BitmapData;
+        copy(source?: any, x?: number, y?: number, width?: number, height?: number, tx?: number, ty?: number, newWidth?: number, newHeight?: number, rotate?: number, anchorX?: number, anchorY?: number, scaleX?: number, scaleY?: number, alpha?: number, blendMode?: string, roundPx?: boolean): Phaser.BitmapData;
         copyPixels(source: any, area: Phaser.Rectangle, x: number, y: number, alpha?: number): void;
-        copyRect(source: any, area: Phaser.Rectangle, x?: number, y?: number, alpha?: number, blendMode?: number, roundPx?: boolean): Phaser.BitmapData;
+        copyRect(source: any, area: Phaser.Rectangle, x?: number, y?: number, alpha?: number, blendMode?: string, roundPx?: boolean): Phaser.BitmapData;
         destroy(): void;
-        draw(source: any, x?: number, y?: number, width?: number, height?: number, blendMode?: number, roundPx?: boolean): Phaser.BitmapData;
-        drawFull(parent: any, blendMode?: number, roundPx?: boolean): Phaser.BitmapData;
-        drawGroup(group: Phaser.Group, blendMode?: number, roundPx?: boolean): Phaser.BitmapData;
+        draw(source: any, x?: number, y?: number, width?: number, height?: number, blendMode?: string, roundPx?: boolean): Phaser.BitmapData;
+        drawFull(parent: any, blendMode?: string, roundPx?: boolean): Phaser.BitmapData;
+        drawGroup(group: Phaser.Group, blendMode?: string, roundPx?: boolean): Phaser.BitmapData;
         extract(destination: Phaser.BitmapData, r: number, g: number, b: number, a?: number, resize?: boolean, r2?: number, g2?: number, b2?: number): Phaser.BitmapData;
         fill(r: number, g: number, b: number, a?: number): Phaser.BitmapData;
         generateTexture(key: string): PIXI.Texture;