diff --git a/jetty-websocket/websocket-server/src/test/java/org/eclipse/jetty/websocket/server/helper/EchoServlet.java b/jetty-websocket/websocket-server/src/test/java/org/eclipse/jetty/websocket/server/helper/EchoServlet.java
index f78242312bf..3da00952699 100644
--- a/jetty-websocket/websocket-server/src/test/java/org/eclipse/jetty/websocket/server/helper/EchoServlet.java
+++ b/jetty-websocket/websocket-server/src/test/java/org/eclipse/jetty/websocket/server/helper/EchoServlet.java
@@ -18,7 +18,6 @@
 
 package org.eclipse.jetty.websocket.server.helper;
 
-import org.eclipse.jetty.websocket.common.extensions.compress.DeflateFrameExtension;
 import org.eclipse.jetty.websocket.common.extensions.compress.PerMessageDeflateExtension;
 import org.eclipse.jetty.websocket.servlet.WebSocketServlet;
 import org.eclipse.jetty.websocket.servlet.WebSocketServletFactory;
@@ -33,7 +32,6 @@ public class EchoServlet extends WebSocketServlet
     public void configure(WebSocketServletFactory factory)
     {
         // Setup some extensions we want to test against
-        factory.getExtensionFactory().register("x-webkit-deflate-frame",DeflateFrameExtension.class);
         factory.getExtensionFactory().register("permessage-compress",PerMessageDeflateExtension.class);
 
         // Setup the desired Socket to use for all incoming upgrade requests