diff --git a/src/vehicle_base.h b/src/vehicle_base.h
--- a/src/vehicle_base.h
+++ b/src/vehicle_base.h
@@ -660,6 +660,7 @@ public:
 
 	bool IsEngineCountable() const;
 	bool HasDepotOrder() const;
+	void HandlePathfindingResult(bool path_found);
 };
 
 #define FOR_ALL_VEHICLES_FROM(var, start) FOR_ALL_ITEMS_FROM(Vehicle, vehicle_index, var, start)