diff --git a/websocket/src/main/java/com/github/devicehive/examples/WebSocketExample.java b/websocket/src/main/java/com/github/devicehive/examples/WebSocketExample.java
index 165c277f..b0de3702 100644
--- a/websocket/src/main/java/com/github/devicehive/examples/WebSocketExample.java
+++ b/websocket/src/main/java/com/github/devicehive/examples/WebSocketExample.java
@@ -42,6 +42,7 @@ public static void main(String[] args) {
                 .Builder()
                 .url(URL)
                 .build();
+        client.authenticate(TOKEN);
 
         DeviceWS deviceWS = client.createDeviceWS();
         deviceWS.setListener(new DeviceListener() {