Including 1099-Q on college student's return

I just finished my taxes (used Turbo Tax as well) and claimed the 1098-T. I am helping my son with his taxes now and when asked, I checked off "yes" to the question asking if he made a 529 withdrawal.

 

The entire withdrawal was used for tuition, however Turbo Tax never asked me to input any information for the form, which I find strange since he is required to report this. I've gotten to the end, but I don't want to submit it assuming that I do not need to include the 1099-Q.