dbus_message_iter_append_basic(&sub, DBUS_TYPE_BOOLEAN, &(img->has_alpha));
dbus_message_iter_append_basic(&sub, DBUS_TYPE_INT32, &(img->bits_per_sample));
dbus_message_iter_append_basic(&sub, DBUS_TYPE_INT32, &(img->channels));
- dbus_message_iter_open_container(&sub, DBUS_TYPE_ARRAY, NULL, &arr);
+ dbus_message_iter_open_container(&sub, DBUS_TYPE_ARRAY, "y", &arr);
dbus_message_iter_append_fixed_array(&arr, DBUS_TYPE_BYTE, &(img->data), data_len);
dbus_message_iter_close_container(&sub, &arr);
}