diff --git a/types/simple-websocket/server.d.ts b/types/simple-websocket/server.d.ts
index 72f4c59c30..94db7f05ec 100644
--- a/types/simple-websocket/server.d.ts
+++ b/types/simple-websocket/server.d.ts
@@ -28,43 +28,51 @@ declare class SocketServer extends EventEmitter {
   addListener(event: "error", cb: (err: Error) => void): this;
   addListener(event: "headers", cb: (headers: string[], request: http.IncomingMessage) => void): this;
   addListener(event: "listening", cb: () => void): this;
-  addListener(event: string | symbol, listener: (...args: any[]) => void): this;
 
   emit(event: "connection", socket: Socket): boolean;
   emit(event: "error", error: Error): boolean;
   emit(event: "headers", headers: string[], request: http.IncomingMessage): boolean;
   emit(event: "listening"): boolean;
-  emit(event: string | symbol, ...args: any[]): boolean;
+
+  listeners(event: "connection"): Array<(socket: Socket, request: http.IncomingMessage) => void>;
+  listeners(event: "error"): Array<(error: Error) => void>;
+  listeners(event: "headers"): Array<(headers: string[], request: http.IncomingMessage) => void>;
+  listeners(event: "listening"): Array<() => void>;
+
+  off(event: "connection", cb: (socket: Socket, request: http.IncomingMessage) => void): this;
+  off(event: "error", cb: (error: Error) => void): this;
+  off(event: "headers", cb: (headers: string[], request: http.IncomingMessage) => void): this;
+  off(event: "listening", cb: () => void): this;
 
   on(event: "connection", cb: (socket: Socket, request: http.IncomingMessage) => void): this;
   on(event: "error", cb: (error: Error) => void): this;
   on(event: "headers", cb: (headers: string[], request: http.IncomingMessage) => void): this;
   on(event: "listening", cb: () => void): this;
-  on(event: string | symbol, listener: (...args: any[]) => void): this;
 
   once(event: "connection", cb: (socket: Socket, request: http.IncomingMessage) => void): this;
   once(event: "error", cb: (error: Error) => void): this;
   once(event: "headers", cb: (headers: string[], request: http.IncomingMessage) => void): this;
   once(event: "listening", cb: () => void): this;
-  once(event: string | symbol, listener: (...args: any[]) => void): this;
 
   prependListener(event: "connection", cb: (client: Socket) => void): this;
   prependListener(event: "error", cb: (err: Error) => void): this;
   prependListener(event: "headers", cb: (headers: string[], request: http.IncomingMessage) => void): this;
   prependListener(event: "listening", cb: () => void): this;
-  prependListener(event: string | symbol, listener: (...args: any[]) => void): this;
 
   prependOnceListener(event: "connection", cb: (client: Socket) => void): this;
   prependOnceListener(event: "error", cb: (err: Error) => void): this;
   prependOnceListener(event: "headers", cb: (headers: string[], request: http.IncomingMessage) => void): this;
   prependOnceListener(event: "listening", cb: () => void): this;
-  prependOnceListener(event: string | symbol, listener: (...args: any[]) => void): this;
+
+  rawListeners(event: "connection"): Array<(socket: Socket, request: http.IncomingMessage) => void>;
+  rawListeners(event: "error"): Array<(error: Error) => void>;
+  rawListeners(event: "headers"): Array<(headers: string[], request: http.IncomingMessage) => void>;
+  rawListeners(event: "listening"): Array<() => void>;
 
   removeListener(event: "connection", cb: (client: Socket) => void): this;
   removeListener(event: "error", cb: (err: Error) => void): this;
   removeListener(event: "headers", cb: (headers: string[], request: http.IncomingMessage) => void): this;
   removeListener(event: "listening", cb: () => void): this;
-  removeListener(event: string | symbol, listener: (...args: any[]) => void): this;
 }
 
 export = SocketServer;