My husband received sales incentive $ on a 1099-MISC from a manufacturer (not his employer). Turbo Tax wants to set him up as self-employed but he is not. Is it prize $

He sells flooring. The manufacturer issued a 1099-MISC, not his employer. Listing it as prize money fixes the error, but is it? Otherwise, it wants us to list W2 we pay employees and a self-employed EIN.