--- a/src/tile_cmd.h	Mon May 26 11:36:42 2008 +0000
+++ b/src/tile_cmd.h	Mon May 26 13:52:59 2008 +0000
@@ -49,7 +49,8 @@
 
 struct TileDesc {
 	StringID str;
-	Owner owner;
+	Owner owner[4];
+	StringID owner_type[4];
 	Date build_date;
 	uint64 dparam[2];
 };