diff --git a/src/main/java/teetime/stage/basic/distributor/Distributor.java b/src/main/java/teetime/stage/basic/distributor/Distributor.java
index e591cfd20aa189a5f4ae305dc42933c9c4107620..ac5f845af15d2de0fa5c55cb1a57eb0e2ccb60e1 100644
--- a/src/main/java/teetime/stage/basic/distributor/Distributor.java
+++ b/src/main/java/teetime/stage/basic/distributor/Distributor.java
@@ -26,7 +26,7 @@ import teetime.framework.OutputPort;
  * @param T
  *            the type of the input port and the output ports
  */
-public class Distributor<T> extends AbstractConsumerStage<T> {
+public final class Distributor<T> extends AbstractConsumerStage<T> {
 
 	private IDistributorStrategy strategy;