diff --git a/src/main/java/com/neovisionaries/ws/client/WebSocketOutputStream.java b/src/main/java/com/neovisionaries/ws/client/WebSocketOutputStream.java
index a70f551..606123f 100644
--- a/src/main/java/com/neovisionaries/ws/client/WebSocketOutputStream.java
+++ b/src/main/java/com/neovisionaries/ws/client/WebSocketOutputStream.java
@@ -75,12 +75,7 @@ private void writeFrame0(WebSocketFrame frame) throws IOException
     private void writeFrame1(WebSocketFrame frame) throws IOException
     {
         // Frames sent from a client are always masked.
-        int b;
-        if (WebSocket.useMask) {
-            b = 0x80;
-        } else {
-            b = 0x00;
-        }
+        int b = 0x80;
 
         int len = frame.getPayloadLength();