For some reason Delta prints GAVINJ as my first name on all tickets even though the J is the first letter of my middle name. When I book flights this isn’t the

For some reason Delta prints GAVINJ as my first name on all tickets even though the J is the first letter of my middle name. When I book flights this isn’t the case, either directly or through a 3rd-party; I assume they have some master record in a mainframe somewhere that was created by some other system incorrectly and I’m stuck with it forever. However, I’ve flown hundreds of times and nobody who has checked my ID has ever been bothered by this, which is a little worrying.