My husband is fully transitioned legally (name and gender legally changed on all documents), physically (surgery years ago, rocking a full beard

), and socially (has not been referred to by old name or pronouns for close to a decade, we've been married for four years and have a child and none of our friends or my family have any idea that he was born female).
Today he got a jury summons for [old female first name] [current male middle name] [last name].
I haven't mentioned it to him yet because it's been so long since he's needed to deal with anything transition-related or acknowledge his old identity that when it does occasionally come up unexpectedly, it kind of sends him into a tailspin, so I don't want to bring it to his attention until I can say "Here is the situation, and here is the solution," and leave no room for panicking in the middle. Which is why I'm asking this and not him.
How do we handle this?