Groomsman Vs Groomsmen - wrong spelling help!

So i ordered my FH groomsmen gifts through etsy a few weeks ago, some custom engraved knives, he okay’d them and asked me is it spelled groomsmen or groomsman and really without thinking i said “groomsmen“ because in my head i was like they are groomsmen as in a group. I even looked back at the picture of the knives and the example had it as “john - Groomsmen“ so they came today and FH loved them, and i just so happened to be scrolling through my etsy and I realized all of the other personalized gifts are spelled Groomsman because its singular like duh! i should have known that. Now im not sure what to do! It would definitely bother FH if i mention it to him, Should i try to take them to a local engraver to fix the ‘e’ to an ‘a’ ? Is it not that big of a deal?