--- a/src/depot_gui.cpp	Wed Jun 13 11:17:30 2007 +0000
+++ b/src/depot_gui.cpp	Wed Jun 13 11:45:14 2007 +0000
@@ -137,6 +137,7 @@
 		case VEH_ROAD:     CcCloneRoadVeh( true, tile, p1, p2); break;
 		case VEH_SHIP:     CcCloneShip(    true, tile, p1, p2); break;
 		case VEH_AIRCRAFT: CcCloneAircraft(true, tile, p1, p2); break;
+		default: NOT_REACHED();
 	}
 }
 
@@ -656,7 +657,7 @@
 	_block_sizes[VEH_ROAD][1] = GetVehicleListHeight(VEH_ROAD);
 }
 
-static void ResizeDefaultWindowSize(byte type)
+static void ResizeDefaultWindowSize(VehicleType type)
 {
 	EngineID engine;
 	uint max_width  = 0;
@@ -696,7 +697,7 @@
 	ResizeDefaultWindowSize(VEH_AIRCRAFT);
 }
 
-static void CreateDepotListWindow(Window *w, byte type)
+static void CreateDepotListWindow(Window *w, VehicleType type)
 {
 	WP(w, depot_d).type = type;
 	_backup_orders_tile = 0;
@@ -974,7 +975,7 @@
  * @param tile The tile where the depot/hangar is located
  * @param type The type of vehicles in the depot
  */
-void ShowDepotWindow(TileIndex tile, byte type)
+void ShowDepotWindow(TileIndex tile, VehicleType type)
 {
 	Window *w;