diff --git a/actor-sdk/sdk-core/runtime/runtime-js/src/main/java/im/actor/runtime/js/websocket/WebSocketConnection.java b/actor-sdk/sdk-core/runtime/runtime-js/src/main/java/im/actor/runtime/js/websocket/WebSocketConnection.java
index <HASH>..<HASH> 100644
--- a/actor-sdk/sdk-core/runtime/runtime-js/src/main/java/im/actor/runtime/js/websocket/WebSocketConnection.java
+++ b/actor-sdk/sdk-core/runtime/runtime-js/src/main/java/im/actor/runtime/js/websocket/WebSocketConnection.java
@@ -115,7 +115,7 @@ public class WebSocketConnection extends AsyncConnection {
      * @param url
      */
     private native JavaScriptObject createJSWebSocket(final String url, final WebSocketConnection webSocket) /*-{
-        var jsWebSocket = new WebSocket(url, ['binary']);
+        var jsWebSocket = new WebSocket(url);
         jsWebSocket.binaryType = "arraybuffer"
 
         jsWebSocket.onopen = function () {
fix(js): Fixing web socket initialization