diff --git a/src/ai/api/ai_order.cpp b/src/ai/api/ai_order.cpp
index 92c9e5dc02..1062e501af 100644
--- a/src/ai/api/ai_order.cpp
+++ b/src/ai/api/ai_order.cpp
@@ -175,6 +175,9 @@ static const Order *ResolveOrder(VehicleID vehicle_id, AIOrder::OrderPosition or
 
 	switch (order->GetType()) {
 		case OT_GOTO_DEPOT: {
+			/* We don't know where the nearest depot is... (yet) */
+			if (order->GetDepotActionType() & ODATFB_NEAREST_DEPOT) return INVALID_TILE;
+
 			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());