diff --git a/ws2012/P2P/uebungen/4/src/node/Node.java b/ws2012/P2P/uebungen/4/src/node/Node.java
index 8f2ea031..18a09983 100644
--- a/ws2012/P2P/uebungen/4/src/node/Node.java
+++ b/ws2012/P2P/uebungen/4/src/node/Node.java
@@ -72,7 +72,7 @@ public class Node {
 		return newNode;
 	}
 
-	public boolean sendInvite(Node newNode) {
+    private boolean sendInvite(Node newNode) {
 		ByteBuffer buffer = ByteBuffer.allocate(BUF_SIZE);
 		Ack ack = generateAck(newNode.getAddress());
 		buffer.put(MessageType.INVITE);
@@ -109,7 +109,7 @@ public class Node {
 		return channel.socket().getLocalSocketAddress();
 	}
 
-	public boolean sendNewNeighbor(SocketAddress receiver,
+    private boolean sendNewNeighbor(SocketAddress receiver,
 			SocketAddress neighbor) {
 		ByteBuffer buffer = ByteBuffer.allocate(BUF_SIZE);
 		Ack ack = generateAck(neighbor);