diff --git a/codec-http/src/main/java/io/netty/handler/codec/http/websocketx/WebSocketServerHandshaker.java b/codec-http/src/main/java/io/netty/handler/codec/http/websocketx/WebSocketServerHandshaker.java
index f3114b222c..1334e87e2e 100644
--- a/codec-http/src/main/java/io/netty/handler/codec/http/websocketx/WebSocketServerHandshaker.java
+++ b/codec-http/src/main/java/io/netty/handler/codec/http/websocketx/WebSocketServerHandshaker.java
@@ -35,7 +35,7 @@ public abstract class WebSocketServerHandshaker {
 
     private final int maxFramePayloadLength;
 
-    private String selectedSubprotocol = null;
+    private String selectedSubprotocol;
 
     /**
      * Constructor specifying the destination web socket location