diff --git a/app/react-native/src/server/index.js b/app/react-native/src/server/index.js
index 862347ec719..2a5fcc167df 100755
--- a/app/react-native/src/server/index.js
+++ b/app/react-native/src/server/index.js
@@ -11,7 +11,7 @@ export default class Server {
     this.expressApp = express();
     this.expressApp.use(storybook(options));
     this.httpServer.on('request', this.expressApp);
-    this.wsServer = ws.Server({ server: this.httpServer });
+    this.wsServer = new ws.Server({ server: this.httpServer });
     this.wsServer.on('connection', s => this.handleWS(s));
   }