Mistake on the I-130 That Has Been Approved

So, I had filed my petition for my mother a few months ago, and a few days ago we received her approval... So now when we were going to fill out I-485 we noticed that an error with her name. My mom was never given a last name/surname even when she was married, so on the I-130, N/A the PDF didn't allow of or n/a... so we just typed NO NAME GIVEN, so I guess that stuck with her as her last name on her I-130 approval notice... So what should I do? Is there anyway to change it? or On the I-485 I should enter the same?


Thank you.

Rather than take our advice, contact USCIS.

http://www.uscis.gov/about-us/contact-us

Thank you, i will do so.