udev_device->id_filename = NULL;
} else if (udev_device_get_ifindex(udev_device) > 0) {
/* use netdev ifindex -- n3 */
- if (asprintf(&udev_device->id_filename, "n%u", udev_device_get_ifindex(udev_device)) < 0)
+ if (asprintf(&udev_device->id_filename, "n%i", udev_device_get_ifindex(udev_device)) < 0)
udev_device->id_filename = NULL;
} else {
/*