diff --git a/src/ai/api/ai_order.cpp b/src/ai/api/ai_order.cpp
--- a/src/ai/api/ai_order.cpp
+++ b/src/ai/api/ai_order.cpp
@@ -181,7 +181,7 @@ static const Order *ResolveOrder(Vehicle
 			if (v->type != VEH_AIRCRAFT) return ::Depot::Get(order->GetDestination())->xy;
 			/* Aircraft's hangars are referenced by StationID, not DepotID */
 			const Station *st = ::Station::Get(order->GetDestination());
-			if (st->GetAirportSpec()->nof_depots == 0) return INVALID_TILE;
+			if (st->airport.GetSpec()->nof_depots == 0) return INVALID_TILE;
 			return st->GetHangarTile(0);
 		}