diff --git a/lib/src/_websocket_html.dart b/lib/src/_websocket_html.dart
index 9f84dce..86d287f 100644
--- a/lib/src/_websocket_html.dart
+++ b/lib/src/_websocket_html.dart
@@ -7,6 +7,7 @@ import 'package:web_socket_channel/web_socket_channel.dart';
 
 Future<WebSocketChannel> connectToWebSocket(Uri uri) {
   var ws = WebSocket(uri.toString());
+  ws.binaryType = 'arraybuffer';
   var completer = Completer<WebSocketChannel>();
   ws.onOpen.first.then((_) {
     completer.complete(HtmlWebSocketChannel(ws));