diff --git a/src/station_func.h b/src/station_func.h
--- a/src/station_func.h
+++ b/src/station_func.h
@@ -15,6 +15,7 @@
 #include "sprite.h"
 #include "rail_type.h"
 #include "road_type.h"
+#include "vehicle_type.h"
 #include "economy_func.h"
 #include "rail.h"
 
@@ -47,6 +48,9 @@ void UpdateAirportsNoise();
 
 bool SplitGroundSpriteForOverlay(const TileInfo *ti, SpriteID *ground, RailTrackOffset *overlay_offset);
 
+void IncreaseStats(Station *st, const Vehicle *v, StationID next_station_id);
+void IncreaseStats(Station *st, CargoID cargo, StationID next_station_id, uint capacity, uint usage);
+
 /**
  * Calculates the maintenance cost of a number of station tiles.
  * @param num Number of station tiles.