Do I have to claim my 17 y/o part time job income on my return?

My filing status is HOH. My 18 y/o son worked a part time job during the year, but he retained 100% of it for his own purposes and will be filing his own tax return. I don't have to put his income on my return, correct? I would not consider it "household income" since none of it came to me to maintain the household.