diff --git a/types/node/index.d.ts b/types/node/index.d.ts
index d11096493f..f693219d5f 100644
--- a/types/node/index.d.ts
+++ b/types/node/index.d.ts
@@ -5629,12 +5629,12 @@ declare module "tty" {
     import * as net from "net";
 
     export function isatty(fd: number): boolean;
-    export interface ReadStream extends net.Socket {
+    export class ReadStream extends net.Socket {
         isRaw: boolean;
         setRawMode(mode: boolean): void;
         isTTY: boolean;
     }
-    export interface WriteStream extends net.Socket {
+    export class WriteStream extends net.Socket {
         columns: number;
         rows: number;
         isTTY: boolean;
diff --git a/types/node/v0/index.d.ts b/types/node/v0/index.d.ts
index 814bbe793e..800a909c49 100644
--- a/types/node/v0/index.d.ts
+++ b/types/node/v0/index.d.ts
@@ -1902,11 +1902,11 @@ declare module "tty" {
     import * as net from "net";
 
     export function isatty(fd: number): boolean;
-    export interface ReadStream extends net.Socket {
+    export class ReadStream extends net.Socket {
         isRaw: boolean;
         setRawMode(mode: boolean): void;
     }
-    export interface WriteStream extends net.Socket {
+    export class WriteStream extends net.Socket {
         columns: number;
         rows: number;
     }
diff --git a/types/node/v4/index.d.ts b/types/node/v4/index.d.ts
index 9d724643ca..09cbd8bb43 100644
--- a/types/node/v4/index.d.ts
+++ b/types/node/v4/index.d.ts
@@ -2477,12 +2477,12 @@ declare module "tty" {
     import * as net from "net";
 
     export function isatty(fd: number): boolean;
-    export interface ReadStream extends net.Socket {
+    export class ReadStream extends net.Socket {
         isRaw: boolean;
         setRawMode(mode: boolean): void;
         isTTY: boolean;
     }
-    export interface WriteStream extends net.Socket {
+    export class WriteStream extends net.Socket {
         columns: number;
         rows: number;
         isTTY: boolean;
diff --git a/types/node/v6/index.d.ts b/types/node/v6/index.d.ts
index b24f170fae..3c81e212b7 100644
--- a/types/node/v6/index.d.ts
+++ b/types/node/v6/index.d.ts
@@ -3897,12 +3897,12 @@ declare module "tty" {
     import * as net from "net";
 
     export function isatty(fd: number): boolean;
-    export interface ReadStream extends net.Socket {
+    export class ReadStream extends net.Socket {
         isRaw: boolean;
         setRawMode(mode: boolean): void;
         isTTY: boolean;
     }
-    export interface WriteStream extends net.Socket {
+    export class WriteStream extends net.Socket {
         columns: number;
         rows: number;
         isTTY: boolean;
diff --git a/types/node/v7/index.d.ts b/types/node/v7/index.d.ts
index 3abee38175..de69dc94c3 100644
--- a/types/node/v7/index.d.ts
+++ b/types/node/v7/index.d.ts
@@ -4002,12 +4002,12 @@ declare module "tty" {
     import * as net from "net";
 
     export function isatty(fd: number): boolean;
-    export interface ReadStream extends net.Socket {
+    export class ReadStream extends net.Socket {
         isRaw: boolean;
         setRawMode(mode: boolean): void;
         isTTY: boolean;
     }
-    export interface WriteStream extends net.Socket {
+    export class WriteStream extends net.Socket {
         columns: number;
         rows: number;
         isTTY: boolean;
diff --git a/types/node/v8/index.d.ts b/types/node/v8/index.d.ts
index 39c7dcbe26..89279586f9 100644
--- a/types/node/v8/index.d.ts
+++ b/types/node/v8/index.d.ts
@@ -5599,12 +5599,12 @@ declare module "tty" {
     import * as net from "net";
 
     export function isatty(fd: number): boolean;
-    export interface ReadStream extends net.Socket {
+    export class ReadStream extends net.Socket {
         isRaw: boolean;
         setRawMode(mode: boolean): void;
         isTTY: boolean;
     }
-    export interface WriteStream extends net.Socket {
+    export class WriteStream extends net.Socket {
         columns: number;
         rows: number;
         isTTY: boolean;