diff --git a/src/math/TransformXY.js b/src/math/TransformXY.js
index 748c5bfb9..496ae49a8 100644
--- a/src/math/TransformXY.js
+++ b/src/math/TransformXY.js
@@ -20,9 +20,9 @@ var Vector2 = require('./Vector2');
  * @param {number} rotation - Rotation of the transform point, in radians.
  * @param {number} scaleX - Horizontal scale of the transform point.
  * @param {number} scaleY - Vertical scale of the transform point.
- * @param {(Vector2|Point|object)} [output] - [description]
+ * @param {(Phaser.Math.Vector2|Phaser.Geom.Point|object)} [output] - [description]
  *
- * @return {(Vector2|Point|object)} The translated point.
+ * @return {(Phaser.Math.Vector2|Phaser.Geom.Point|object)} The translated point.
  */
 var TransformXY = function (x, y, positionX, positionY, rotation, scaleX, scaleY, output)
 {
diff --git a/src/math/Vector2.js b/src/math/Vector2.js
index b98d09b03..527c2bbd8 100644
--- a/src/math/Vector2.js
+++ b/src/math/Vector2.js
@@ -9,6 +9,13 @@
 
 var Class = require('../utils/Class');
 
+/**
+ * @typedef {object} Vector2Like
+ *
+ * @property {number} x - [description]
+ * @property {number} y - [description]
+ */
+
 /**
  * @classdesc
  * [description]
@@ -35,6 +42,7 @@ var Vector2 = new Class({
          * @default 0
          * @since 3.0.0
          */
+        this.x = 0;
 
         /**
          * The y component of this Vector.
@@ -44,6 +52,7 @@ var Vector2 = new Class({
          * @default 0
          * @since 3.0.0
          */
+        this.y = 0;
 
         if (typeof x === 'object')
         {
@@ -78,7 +87,7 @@ var Vector2 = new Class({
      * @method Phaser.Math.Vector2#copy
      * @since 3.0.0
      *
-     * @param {(Phaser.Math.Vector2|object)} src - [description]
+     * @param {(Phaser.Math.Vector2|Vector2Like)} src - [description]
      *
      * @return {Phaser.Math.Vector2} This Vector2.
      */