--- a/src/roadveh.h	Mon Apr 21 17:04:17 2008 +0000
+++ b/src/roadveh.h	Mon Apr 21 20:50:58 2008 +0000
@@ -73,7 +73,7 @@
 	ExpensesType GetExpenseType(bool income) const { return income ? EXPENSES_ROADVEH_INC : EXPENSES_ROADVEH_RUN; }
 	WindowClass GetVehicleListWindowClass() const { return WC_ROADVEH_LIST; }
 	bool IsPrimaryVehicle() const { return IsRoadVehFront(this); }
-	int GetImage(Direction direction) const;
+	SpriteID GetImage(Direction direction) const;
 	int GetDisplaySpeed() const { return this->cur_speed * 10 / 32; }
 	int GetDisplayMaxSpeed() const { return this->max_speed * 10 / 32; }
 	Money GetRunningCost() const { return RoadVehInfo(this->engine_type)->running_cost * GetPriceByIndex(RoadVehInfo(this->engine_type)->running_cost_class); }