diff --git a/src/rail_cmd.cpp b/src/rail_cmd.cpp
--- a/src/rail_cmd.cpp
+++ b/src/rail_cmd.cpp
@@ -789,11 +789,11 @@ CommandCost CmdBuildTrainDepot(TileIndex
 
 	if (flags & DC_EXEC) {
 		Depot *d = new Depot(tile);
-		MakeRailDepot(tile, _current_company, dir, (RailType)p1);
+		d->town_index = ClosestTownFromTile(tile, UINT_MAX)->index;
+
+		MakeRailDepot(tile, _current_company, d->index, dir, (RailType)p1);
 		MarkTileDirtyByTile(tile);
 
-		d->town_index = ClosestTownFromTile(tile, UINT_MAX)->index;
-
 		AddSideToSignalBuffer(tile, INVALID_DIAGDIR, _current_company);
 		YapfNotifyTrackLayoutChange(tile, DiagDirToDiagTrack(dir));
 	}