diff --git a/src/cargopacket.cpp b/src/cargopacket.cpp
--- a/src/cargopacket.cpp
+++ b/src/cargopacket.cpp
@@ -274,14 +274,3 @@ void CargoList::InvalidateCache()
 	source = (*packets.begin())->source;
 }
 
-/** Restore an array of cargo packets  from a backup
- * The end of the row should be marked by an invalid packet
- */
-void CargoPacket::RestoreBackup() const
-{
-	for (const CargoPacket *cargo = this; cargo->IsValid(); cargo++) {
-		CargoPacket *dest = GetCargoPacket(cargo->index);
-		assert(!dest->IsValid());
-		memcpy(dest, cargo, sizeof(CargoPacket));
-	}
-}
diff --git a/src/cargopacket.h b/src/cargopacket.h
--- a/src/cargopacket.h
+++ b/src/cargopacket.h
@@ -56,8 +56,6 @@ struct CargoPacket : PoolItem<CargoPacke
 	 * @return true if and only if days_in_transit and source_xy are equal
 	 */
 	bool SameSource(const CargoPacket *cp) const;
-
-	void RestoreBackup() const;
 };
 
 /**