diff --git a/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs b/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs
index 5610c099eb..7b1aa2cf90 100644
--- a/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs
+++ b/OpenSim/Region/ClientStack/Linden/UDP/LLUDPServer.cs
@@ -492,6 +492,7 @@ namespace OpenSim.Region.ClientStack.LindenUDP
             if ((Environment.TickCount & Int32.MaxValue) - udpClient.TickLastPacketReceived > 1000 * 60)
             {
                 m_log.Warn("[LLUDPSERVER]: Ack timeout, disconnecting " + udpClient.AgentID);
+                StatsManager.SimExtraStats.AddAbnormalClientThreadTermination();
 
                 RemoveClient(udpClient);
                 return;