diff --git a/core/src/main/java/com/google/bitcoin/core/AbstractPeerEventListener.java b/core/src/main/java/com/google/bitcoin/core/AbstractPeerEventListener.java
index 7bf9659e..f3332ac4 100644
--- a/core/src/main/java/com/google/bitcoin/core/AbstractPeerEventListener.java
+++ b/core/src/main/java/com/google/bitcoin/core/AbstractPeerEventListener.java
@@ -22,26 +22,33 @@ import java.util.List;
  * Convenience implementation of {@link PeerEventListener}.
  */
 public class AbstractPeerEventListener implements PeerEventListener {
+    @Override
     public void onBlocksDownloaded(Peer peer, Block block, int blocksLeft) {
     }
 
+    @Override
     public void onChainDownloadStarted(Peer peer, int blocksLeft) {
     }
 
+    @Override
     public void onPeerConnected(Peer peer, int peerCount) {
     }
 
+    @Override
     public void onPeerDisconnected(Peer peer, int peerCount) {
     }
 
+    @Override
     public Message onPreMessageReceived(Peer peer, Message m) {
         // Just pass the message right through for further processing.
         return m;
     }
 
+    @Override
     public void onTransaction(Peer peer, Transaction t) {
     }
 
+    @Override
     public List<Message> getData(Peer peer, GetDataMessage m) {
         return null;
     }