diff --git a/src/base_station_base.h b/src/base_station_base.h
--- a/src/base_station_base.h
+++ b/src/base_station_base.h
@@ -43,7 +43,7 @@ struct StationRect : public Rect {
 	CommandCost BeforeAddTile(TileIndex tile, StationRectMode mode);
 	CommandCost BeforeAddRect(TileIndex tile, int w, int h, StationRectMode mode);
 	bool AfterRemoveTile(BaseStation *st, TileIndex tile);
-	bool AfterRemoveRect(BaseStation *st, TileIndex tile, int w, int h);
+	bool AfterRemoveRect(BaseStation *st, TileArea ta);
 
 	static bool ScanForStationTiles(StationID st_id, int left_a, int top_a, int right_a, int bottom_a);