--- a/net/minecraft/network/Connection.java
+++ b/net/minecraft/network/Connection.java
@@ -105,6 +105,7 @@
     private volatile Component delayedDisconnect;
     @Nullable
     BandwidthDebugMonitor bandwidthDebugMonitor;
+    public String hostname = ""; // CraftBukkit - add field
 
     public Connection(PacketFlow packetflow) {
         this.receiving = packetflow;