How do I change a death certificate, since it was listed we were divorced though we're not and I can't collect his pension?

My husband committed suicide in 2008. His brother identified the body, I couldn't handle it. He listed on the death certificate my husband as divorced. He was divorced from his former wife in 1998, I have a copy of the divorce papers as well as our marriage license and certificate. I am eligible to collect his pension but am unable to until I make the change on the death certificate with the state. They feel this will not be easy to fix. I have to send all the above mentioned documents and $75 for a state wide search whatever that is for. Any advice or experience on how to handle this would be greatly appreciated, thank you.