diff --git a/htlcswitch/switch.go b/htlcswitch/switch.go
index 74d7f568..afdd001c 100644
--- a/htlcswitch/switch.go
+++ b/htlcswitch/switch.go
@@ -1174,6 +1174,7 @@ func (s *Switch) failAddPacket(packet *htlcPacket,
 	log.Error(failErr)
 
 	failPkt := &htlcPacket{
+		sourceRef:      packet.sourceRef,
 		incomingChanID: packet.incomingChanID,
 		incomingHTLCID: packet.incomingHTLCID,
 		circuit:        packet.circuit,