diff --git a/src/saveload/cargopacket_sl.cpp b/src/saveload/cargopacket_sl.cpp
--- a/src/saveload/cargopacket_sl.cpp
+++ b/src/saveload/cargopacket_sl.cpp
@@ -14,6 +14,8 @@ static const SaveLoad _cargopacket_desc[
 	     SLE_VAR(CargoPacket, count,           SLE_UINT16),
 	     SLE_VAR(CargoPacket, days_in_transit, SLE_UINT8),
 	     SLE_VAR(CargoPacket, feeder_share,    SLE_INT64),
+	 SLE_CONDVAR(CargoPacket, source_type,     SLE_UINT8,  125, SL_MAX_VERSION),
+	 SLE_CONDVAR(CargoPacket, source_id,       SLE_UINT16, 125, SL_MAX_VERSION),
 
 	/* Used to be paid_for, but that got changed. */
 	SLE_CONDNULL(1, 0, 120),