diff --git a/ws2012/P2P/uebungen/4/src/node/UDPHandler.java b/ws2012/P2P/uebungen/4/src/node/UDPHandler.java
index ef48ba13..637f28a7 100644
--- a/ws2012/P2P/uebungen/4/src/node/UDPHandler.java
+++ b/ws2012/P2P/uebungen/4/src/node/UDPHandler.java
@@ -53,9 +53,8 @@ public class UDPHandler implements Runnable {
         if (node.hasAck(ack_id)) {
             Ack theAck = node.getAck(ack_id);
             if (theAck.check(from)) {
-                // theAck.setReceived();
-                // node.removeAck(theAck.getId());
-                node.removeAck(ack_id).setReceived();
+                Ack removedAck = node.removeAck(ack_id);
+                removedAck.setReceived();
             }
         }
     }