MAX6675 library not working on nano IOT

Hi,
I’ve been working on this sketch that includes the max6675.h library. Running it on an UNO is not a problem, but when I try to load the sketch on my nano IOT, it get

/home/builder/opt/libraries/latest/max6675_library_1_0_1/max6675.cpp:9:10: fatal error: util/delay.h: No such file or directory

#include <util/delay.h>

^~~~~~~~~~~~~~

compilation terminated.

exit status 1

Any idea how to solve this?