The pension needs to have "rights of survivorship" with you as the beneficiary.

I'm not lawyer, but this is how I set up my pension that had many options, but we are still married and will be...maybe I should check on that...LOL.

You need to find out what "program" was selected by him when taking retirement, or if not yet taken, find out what he intends to do, and if is not fare to you, then do something about it.

Good luck, Joe.