Is this a mistake? If so, does it matter?

My father works for an organization and is from what we understood employed. We stated such on the common app which I have submitted to 10 schools. Now, while filling out the CSS, I found that we may need to consider him self-employed because he doesn’t have a specific set of hours and he may be considered self-employed by that standard. I don’t think a school is going to void my application over such a little thing of course, but I want to know if its a problem since it won’t perfectly match the CSS Profile. If it is significant because it wouldn’t match, I shall email the schools letting them know, If not, however, I’ll just leave as is. Thanks