diff --git a/src/threading/MsgThread.cc b/src/threading/MsgThread.cc
index 7d7ab73a50..01f90921e8 100644
--- a/src/threading/MsgThread.cc
+++ b/src/threading/MsgThread.cc
@@ -260,6 +260,9 @@ void MsgThread::OnKill()
 
 void MsgThread::Heartbeat()
 	{
+	if ( child_sent_finish )
+		return;
+
 	SendIn(new HeartbeatMessage(this, network_time, current_time()));
 	}