diff --git a/es6-promise.d.ts b/es6-promise.d.ts
index b8f93387b..c6830fddb 100644
--- a/es6-promise.d.ts
+++ b/es6-promise.d.ts
@@ -12,24 +12,7 @@ interface Thenable<R> {
     then<U>(onFulfilled?: (value: R) => U, onRejected?: (error: any) => void): Thenable<U>;
 }
 
-declare class Promise<R> implements Thenable<R> {
-    /**
-     * If you call resolve in the body of the callback passed to the constructor, 
-     * your promise is fulfilled with result object passed to resolve.
-     * If you call reject your promise is rejected with the object passed to resolve. 
-     * For consistency and debugging (eg stack traces), obj should be an instanceof Error. 
-     * Any errors thrown in the constructor callback will be implicitly passed to reject().
-     */
-    constructor(callback: (resolve: (result?: R) => void, reject: (error: any) => void) => void);
-    /**
-     * If you call resolve in the body of the callback passed to the constructor, 
-     * your promise will be fulfilled/rejected with the outcome of thenable passed to resolve.
-     * If you call reject your promise is rejected with the object passed to resolve. 
-     * For consistency and debugging (eg stack traces), obj should be an instanceof Error. 
-     * Any errors thrown in the constructor callback will be implicitly passed to reject().
-     */
-    constructor(callback: (resolve: (thenable?: Thenable<R>) => void, reject: (error: any) => void) => void);
-
+interface Promise<R> extends Thenable<R> {
     /**
      * onFulfilled is called when/if "promise" resolves. onRejected is called when/if "promise" rejects. 
      * Both are optional, if either/both are omitted the next onFulfilled/onRejected in the chain is called. 
@@ -108,41 +91,56 @@ declare class Promise<R> implements Thenable<R> {
     catch<U>(onRejected?: (error: any) => void): Promise<U>;
 }
 
-declare module Promise {
+interface PromiseConstructor {
+    /**
+      * A reference to the prototype.
+      */
+    prototype: Promise<any>;
+
+    /**
+     * Creates a new Promise.
+     * @param executor A callback used to initialize the promise. This callback is passed two arguments:
+     * a resolve callback used resolve the promise with a value or the result of another promise,
+     * and a reject callback used to reject the promise with a provided reason or error.
+     */
+    new <T>(executor: (resolve: (value?: T | PromiseLike<T>) => void, reject: (reason?: any) => void) => void): Promise<T>;
+
     /**
      * Returns promise (only if promise.constructor == Promise)
      */
-    function cast<R>(promise: Promise<R>): Promise<R>;
+    cast<R>(promise: Promise<R>): Promise<R>;
     /**
      * Make a promise that fulfills to obj.
      */
-    function cast<R>(object: R): Promise<R>;
+    cast<R>(object: R): Promise<R>;
 
     /**
      * Make a new promise from the thenable. 
      * A thenable is promise-like in as far as it has a "then" method. 
      * This also creates a new promise if you pass it a genuine JavaScript promise, making it less efficient for casting than Promise.cast.
      */
-    function resolve<R>(thenable?: Thenable<R>): Promise<R>;
+    resolve<R>(thenable?: Thenable<R>): Promise<R>;
     /**
      * Make a promise that fulfills to obj. Same as Promise.cast(obj) in this situation.
      */
-    function resolve<R>(object?: R): Promise<R>;
+    resolve<R>(object?: R): Promise<R>;
 
     /**
      * Make a promise that rejects to obj. For consistency and debugging (eg stack traces), obj should be an instanceof Error
      */
-    function reject(error: any): Promise<any>;
+    reject(error: any): Promise<any>;
 
     /**
      * Make a promise that fulfills when every item in the array fulfills, and rejects if (and when) any item rejects. 
      * the array passed to all can be a mixture of promise-like objects and other objects. 
      * The fulfillment value is an array (in order) of fulfillment values. The rejection value is the first rejection value.
      */
-    function all<R>(promises: Promise<R>[]): Promise<R[]>;
+    all<R>(promises: Promise<R>[]): Promise<R[]>;
 
     /**
      * Make a Promise that fulfills when any item fulfills, and rejects if any item rejects.
      */
-    function race<R>(promises: Promise<R>[]): Promise<R>;
+    race<R>(promises: Promise<R>[]): Promise<R>;
 }
+
+declare var Promise: PromiseConstructor;