diff --git a/src/main/java/org/jboss/netty/channel/socket/http/HttpTunnelWorker.java b/src/main/java/org/jboss/netty/channel/socket/http/HttpTunnelWorker.java
index 99c2ff59f4..14f1b618d4 100644
--- a/src/main/java/org/jboss/netty/channel/socket/http/HttpTunnelWorker.java
+++ b/src/main/java/org/jboss/netty/channel/socket/http/HttpTunnelWorker.java
@@ -34,7 +34,8 @@ import org.jboss.netty.channel.ChannelFuture;
  * @author Andy Taylor (andy.taylor@jboss.org)
  * @version $Rev$, $Date$
  */
-class HttpTunnelWorker implements Runnable {
+final class HttpTunnelWorker implements Runnable {
+
     private final HttpTunnelingClientSocketChannel channel;
 
     HttpTunnelWorker(HttpTunnelingClientSocketChannel channel) {
diff --git a/src/main/java/org/jboss/netty/channel/socket/http/HttpTunnelingClientSocketPipelineSink.java b/src/main/java/org/jboss/netty/channel/socket/http/HttpTunnelingClientSocketPipelineSink.java
index 27d51f56b8..28841559fd 100644
--- a/src/main/java/org/jboss/netty/channel/socket/http/HttpTunnelingClientSocketPipelineSink.java
+++ b/src/main/java/org/jboss/netty/channel/socket/http/HttpTunnelingClientSocketPipelineSink.java
@@ -42,7 +42,7 @@ import org.jboss.netty.util.ThreadRenamingRunnable;
  * @author Andy Taylor (andy.taylor@jboss.org)
  * @version $Rev$, $Date$
  */
-class HttpTunnelingClientSocketPipelineSink extends AbstractChannelSink {
+final class HttpTunnelingClientSocketPipelineSink extends AbstractChannelSink {
 
     static String LINE_TERMINATOR = "\r\n";
     private final Executor workerExecutor;
diff --git a/src/main/java/org/jboss/netty/channel/socket/http/HttpTunnelingSocketChannelConfig.java b/src/main/java/org/jboss/netty/channel/socket/http/HttpTunnelingSocketChannelConfig.java
index 7e303441b1..ec967bbe0c 100644
--- a/src/main/java/org/jboss/netty/channel/socket/http/HttpTunnelingSocketChannelConfig.java
+++ b/src/main/java/org/jboss/netty/channel/socket/http/HttpTunnelingSocketChannelConfig.java
@@ -35,7 +35,7 @@ import org.jboss.netty.util.ConversionUtil;
  * @author Andy Taylor (andy.taylor@jboss.org)
  * @version $Rev$, $Date$
  */
-class HttpTunnelingSocketChannelConfig extends DefaultChannelConfig
+final class HttpTunnelingSocketChannelConfig extends DefaultChannelConfig
                                        implements SocketChannelConfig {
 
     final Socket socket;