diff --git a/src/saveload/station_sl.cpp b/src/saveload/station_sl.cpp
--- a/src/saveload/station_sl.cpp
+++ b/src/saveload/station_sl.cpp
@@ -86,7 +86,7 @@ void MoveBuoysToWaypoints()
 
 		if (train) {
 			/* When we make a rail waypoint of the station, convert the map as well. */
-			TILE_AREA_LOOP(t, train_st) {
+			for (TileIndex t : train_st) {
 				if (!IsTileType(t, MP_STATION) || GetStationIndex(t) != index) continue;
 
 				SB(_me[t].m6, 3, 3, STATION_WAYPOINT);