diff --git a/node/node.d.ts b/node/node.d.ts
index cc0880557..40bcb8663 100644
--- a/node/node.d.ts
+++ b/node/node.d.ts
@@ -1353,7 +1353,8 @@ declare module "fs" {
     export function write(fd: number, data: any, callback?: (err: NodeJS.ErrnoException, written: number, str: string) => void): void;
     export function write(fd: number, data: any, offset: number, callback?: (err: NodeJS.ErrnoException, written: number, str: string) => void): void;
     export function write(fd: number, data: any, offset: number, encoding: string, callback?: (err: NodeJS.ErrnoException, written: number, str: string) => void): void;
-    export function writeSync(fd: number, buffer: Buffer, offset: number, length: number, position: number): number;
+    export function writeSync(fd: number, buffer: Buffer, offset: number, length: number, position?: number): number;
+    export function writeSync(fd: number, data: any, position?: number, enconding?: string): number;
     export function read(fd: number, buffer: Buffer, offset: number, length: number, position: number, callback?: (err: NodeJS.ErrnoException, bytesRead: number, buffer: Buffer) => void): void;
     export function readSync(fd: number, buffer: Buffer, offset: number, length: number, position: number): number;
     /*