diff --git a/src/vehicle_func.h b/src/vehicle_func.h
--- a/src/vehicle_func.h
+++ b/src/vehicle_func.h
@@ -175,7 +175,7 @@ bool CanVehicleUseStation(const Vehicle 
 
 void ReleaseDisastersTargetingVehicle(VehicleID vehicle);
 
-typedef SmallVector<VehicleID, 2> VehicleSet;
+typedef std::vector<VehicleID> VehicleSet;
 void GetVehicleSet(VehicleSet &set, Vehicle *v, uint8 num_vehicles);
 
 void CheckCargoCapacity(Vehicle *v);