diff --git a/src/curves/Curve.js b/src/curves/Curve.js
index 36b8023b4..45697c14c 100644
--- a/src/curves/Curve.js
+++ b/src/curves/Curve.js
@@ -295,6 +295,8 @@ var Curve = new Class({
      * @method Phaser.Curves.Curve#getPoints
      * @since 3.0.0
      *
+     * @generic {Phaser.Math.Vector2[]} O - [out,$return]
+     *
      * @param {integer} divisions - The number of evenly spaced points from the curve to return. If falsy, step param will be used to calculate the number of points.
      * @param {number} step - Step between points. Used to calculate the number of points to return when divisions is falsy. Ignored if divisions is positive.     
      * @param {(array|Phaser.Math.Vector2[])} [out] - An optional array to store the points in.
diff --git a/src/geom/ellipse/Ellipse.js b/src/geom/ellipse/Ellipse.js
index 0bbd35184..80c23c114 100644
--- a/src/geom/ellipse/Ellipse.js
+++ b/src/geom/ellipse/Ellipse.js
@@ -135,11 +135,13 @@ var Ellipse = new Class({
      * @method Phaser.Geom.Ellipse#getPoints
      * @since 3.0.0
      *
+     * @generic {Phaser.Geom.Point[]} O - [output,$return]
+     *
      * @param {integer} quantity - The amount of points to return. If a falsey value the quantity will be derived from the `stepRate` instead.
      * @param {number} [stepRate] - Sets the quantity by getting the circumference of the ellipse and dividing it by the stepRate.
-     * @param {array} [output] - An array to insert the points in to. If not provided a new array will be created.
+     * @param {(array|Phaser.Geom.Point[])} [output] - An array to insert the points in to. If not provided a new array will be created.
      *
-     * @return {Phaser.Geom.Point[]} An array of Point objects pertaining to the points around the circumference of the ellipse.
+     * @return {(array|Phaser.Geom.Point[])} An array of Point objects pertaining to the points around the circumference of the ellipse.
      */
     getPoints: function (quantity, stepRate, output)
     {
diff --git a/src/geom/line/Line.js b/src/geom/line/Line.js
index 09b3f87b1..e99817234 100644
--- a/src/geom/line/Line.js
+++ b/src/geom/line/Line.js
@@ -113,7 +113,7 @@ var Line = new Class({
      * @method Phaser.Geom.Line#getPoints
      * @since 3.0.0
      *
-     * @generic {Phaser.Geom.Point} O - [output,$return]
+     * @generic {Phaser.Geom.Point[]} O - [output,$return]
      *
      * @param {integer} quantity - The number of points to place on the line. Set to `0` to use `stepRate` instead.
      * @param {integer} [stepRate] - The distance between each point on the line. When set, `quantity` is implied and should be set to `0`.
diff --git a/src/geom/polygon/Polygon.js b/src/geom/polygon/Polygon.js
index 2d04e1d9f..4133d3892 100644
--- a/src/geom/polygon/Polygon.js
+++ b/src/geom/polygon/Polygon.js
@@ -211,11 +211,13 @@ var Polygon = new Class({
      * @method Phaser.Geom.Polygon#getPoints
      * @since 3.12.0
      *
+     * @generic {Phaser.Geom.Point[]} O - [output,$return]
+     *
      * @param {integer} quantity - The amount of points to return. If a falsey value the quantity will be derived from the `stepRate` instead.
      * @param {number} [stepRate] - Sets the quantity by getting the perimeter of the Polygon and dividing it by the stepRate.
-     * @param {array} [output] - An array to insert the points in to. If not provided a new array will be created.
+     * @param {(array|Phaser.Geom.Point[])} [output] - An array to insert the points in to. If not provided a new array will be created.
      *
-     * @return {Phaser.Geom.Point[]} An array of Point objects pertaining to the points around the perimeter of the Polygon.
+     * @return {(array|Phaser.Geom.Point[])} An array of Point objects pertaining to the points around the perimeter of the Polygon.
      */
     getPoints: function (quantity, step, output)
     {
diff --git a/types/phaser.d.ts b/types/phaser.d.ts
index 43b74e683..39a845498 100644
--- a/types/phaser.d.ts
+++ b/types/phaser.d.ts
@@ -5178,7 +5178,7 @@ declare namespace Phaser {
              * @param step Step between points. Used to calculate the number of points to return when divisions is falsy. Ignored if divisions is positive.
              * @param out An optional array to store the points in.
              */
-            getPoints(divisions: integer, step: number, out?: any[] | Phaser.Math.Vector2[]): any[] | Phaser.Math.Vector2[];
+            getPoints<O extends Phaser.Math.Vector2[]>(divisions: integer, step: number, out?: O): O;
 
             /**
              * [description]
@@ -38275,7 +38275,7 @@ declare namespace Phaser {
              * @param stepRate Sets the quantity by getting the circumference of the ellipse and dividing it by the stepRate.
              * @param output An array to insert the points in to. If not provided a new array will be created.
              */
-            getPoints(quantity: integer, stepRate?: number, output?: any[]): Phaser.Geom.Point[];
+            getPoints<O extends Phaser.Geom.Point[]>(quantity: integer, stepRate?: number, output?: O): O;
 
             /**
              * Returns a uniformly distributed random point from anywhere within the given Ellipse.
@@ -38807,7 +38807,7 @@ declare namespace Phaser {
              * @param stepRate The distance between each point on the line. When set, `quantity` is implied and should be set to `0`.
              * @param output An optional array of Points, or point-like objects, to store the coordinates of the points on the line.
              */
-            getPoints<O extends Phaser.Geom.Point>(quantity: integer, stepRate?: integer, output?: O): O;
+            getPoints<O extends Phaser.Geom.Point[]>(quantity: integer, stepRate?: integer, output?: O): O;
 
             /**
              * Get a random Point on the Line.
@@ -39218,7 +39218,7 @@ declare namespace Phaser {
              * @param stepRate Sets the quantity by getting the perimeter of the Polygon and dividing it by the stepRate.
              * @param output An array to insert the points in to. If not provided a new array will be created.
              */
-            getPoints(quantity: integer, stepRate?: number, output?: any[]): Phaser.Geom.Point[];
+            getPoints<O extends Phaser.Geom.Point[]>(quantity: integer, stepRate?: number, output?: O): O;
 
             /**
              * Reverses the order of the points of a Polygon.