Do I qualify for the Self-Employed Health Insurance Deduction if I only did a small amount of freelance work?

I earn most of my income from a staff job but it is not full-time and my employer can't give me health insurance, so I buy it from the marketplace. I also did one freelance gig in 2020. Do I qualify for the deduction even though self-employment is not my main source of income? I don't really refer to myself as "self-employed." The IRS instructions for this say "The insurance plan must be established under your business" and I'm not sure what that means... if the insurance policy is under my name, and I do business under my name, does that work? Thank you!