diff --git a/src/tree_cmd.cpp b/src/tree_cmd.cpp
--- a/src/tree_cmd.cpp
+++ b/src/tree_cmd.cpp
@@ -392,7 +392,7 @@ CommandCost CmdPlantTree(TileIndex tile,
 	int limit = (c == nullptr ? INT32_MAX : GB(c->tree_limit, 16, 16));
 
 	TileArea ta(tile, p2);
-	TILE_AREA_LOOP(tile, ta) {
+	for (TileIndex tile : ta) {
 		switch (GetTileType(tile)) {
 			case MP_TREES:
 				/* no more space for trees? */