diff --git a/fs-extra-promise-es6/index.d.ts b/fs-extra-promise-es6/index.d.ts
index 15027a70e3..e67503e559 100644
--- a/fs-extra-promise-es6/index.d.ts
+++ b/fs-extra-promise-es6/index.d.ts
@@ -9,29 +9,7 @@
 
 
 import stream = require("stream");
-
-export interface Stats {
-    isFile(): boolean;
-    isDirectory(): boolean;
-    isBlockDevice(): boolean;
-    isCharacterDevice(): boolean;
-    isSymbolicLink(): boolean;
-    isFIFO(): boolean;
-    isSocket(): boolean;
-    dev: number;
-    ino: number;
-    mode: number;
-    nlink: number;
-    uid: number;
-    gid: number;
-    rdev: number;
-    size: number;
-    blksize: number;
-    blocks: number;
-    atime: Date;
-    mtime: Date;
-    ctime: Date;
-}
+import fs = require("fs");
 
 export interface FSWatcher {
     close(): void;
@@ -106,12 +84,12 @@ export declare function lchmod(path: string, mode: string, callback?: (err: Erro
 export declare function lchmod(path: string, mode: number, callback?: (err: Error) => void): void;
 export declare function lchmodSync(path: string, mode: number): void;
 export declare function lchmodSync(path: string, mode: string): void;
-export declare function stat(path: string, callback?: (err: Error, stats: Stats) => void): void;
-export declare function lstat(path: string, callback?: (err: Error, stats: Stats) => void): void;
-export declare function fstat(fd: number, callback?: (err: Error, stats: Stats) => void): void;
-export declare function statSync(path: string): Stats;
-export declare function lstatSync(path: string): Stats;
-export declare function fstatSync(fd: number): Stats;
+export declare function stat(path: string, callback?: (err: Error, stats: fs.Stats) => void): void;
+export declare function lstat(path: string, callback?: (err: Error, stats: fs.Stats) => void): void;
+export declare function fstat(fd: number, callback?: (err: Error, stats: fs.Stats) => void): void;
+export declare function statSync(path: string): fs.Stats;
+export declare function lstatSync(path: string): fs.Stats;
+export declare function fstatSync(fd: number): fs.Stats;
 export declare function link(srcpath: string, dstpath: string, callback?: (err: Error) => void): void;
 export declare function linkSync(srcpath: string, dstpath: string): void;
 export declare function symlink(srcpath: string, dstpath: string, type?: string, callback?: (err: Error) => void): void;
@@ -158,9 +136,9 @@ export declare function appendFile(filename: string, data: any, encoding?: strin
 export declare function appendFile(filename: string, data: any, option?: OpenOptions, callback?: (err: Error) => void): void;
 export declare function appendFileSync(filename: string, data: any, encoding?: string): void;
 export declare function appendFileSync(filename: string, data: any, option?: OpenOptions): void;
-export declare function watchFile(filename: string, listener: { curr: Stats; prev: Stats; }): void;
-export declare function watchFile(filename: string, options: { persistent?: boolean; interval?: number; }, listener: { curr: Stats; prev: Stats; }): void;
-export declare function unwatchFile(filename: string, listener?: Stats): void;
+export declare function watchFile(filename: string, listener: { curr: fs.Stats; prev: fs.Stats; }): void;
+export declare function watchFile(filename: string, options: { persistent?: boolean; interval?: number; }, listener: { curr: fs.Stats; prev: fs.Stats; }): void;
+export declare function unwatchFile(filename: string, listener?: fs.Stats): void;
 export declare function watch(filename: string, options?: { persistent?: boolean; }, listener?: (event: string, filename: string) => any): FSWatcher;
 export declare function exists(path: string, callback?: (exists: boolean) => void): void;
 export declare function existsSync(path: string): boolean;
@@ -172,20 +150,21 @@ export interface OpenOptions {
     flag?: string;
 }
 
-export interface ReadStreamOptions {
+export declare function createReadStream(path: string | Buffer, options?: {
     flags?: string;
     encoding?: string;
     fd?: number;
     mode?: number;
-    bufferSize?: number;
-}
-export interface WriteStreamOptions {
+    autoClose?: boolean;
+    start?: number;
+    end?: number;
+}): ReadStream;
+export declare function createWriteStream(path: string | Buffer, options?: {
     flags?: string;
     encoding?: string;
-    string?: string;
-}
-export declare function createReadStream(path: string, options?: ReadStreamOptions): ReadStream;
-export declare function createWriteStream(path: string, options?: WriteStreamOptions): WriteStream;
+    fd?: number;
+    mode?: number;
+}): WriteStream;
 
 
 
@@ -228,9 +207,9 @@ export declare function fchmodAsync(fd: number, mode: number): Promise<void>;
 export declare function fchmodAsync(fd: number, mode: string): Promise<void>;
 export declare function lchmodAsync(path: string, mode: string): Promise<void>;
 export declare function lchmodAsync(path: string, mode: number): Promise<void>;
-export declare function statAsync(path: string): Promise<Stats>;
-export declare function lstatAsync(path: string): Promise<Stats>;
-export declare function fstatAsync(fd: number): Promise<Stats>;
+export declare function statAsync(path: string): Promise<fs.Stats>;
+export declare function lstatAsync(path: string): Promise<fs.Stats>;
+export declare function fstatAsync(fd: number): Promise<fs.Stats>;
 export declare function linkAsync(srcpath: string, dstpath: string): Promise<void>;
 export declare function symlinkAsync(srcpath: string, dstpath: string, type?: string): Promise<void>;
 export declare function readlinkAsync(path: string): Promise<string>;