diff --git a/src/town.h b/src/town.h
--- a/src/town.h
+++ b/src/town.h
@@ -20,6 +20,7 @@
 #include "map_type.h"
 #include "command_type.h"
 #include "town_map.h"
+#include "subsidy_type.h"
 
 template <typename T>
 struct BuildingCounts {
@@ -107,6 +108,8 @@ struct Town : TownPool::PoolItem<&_town_
 	bool larger_town;
 	TownLayoutByte layout; ///< town specific road layout
 
+	PartOfSubsidyByte part_of_subsidy; ///< NOSAVE: is this town a source/destination of a subsidy?
+
 	/* NOSAVE: UpdateTownRadius updates this given the house count. */
 	uint32 squared_town_zone_radius[HZB_END];