u/GetChecked__

So at work, one of my coworkers called me Isaiah. That's not my name. And for some stupid reason I never corrected him, so every time he sees me he calls me Isaiah and I feel like its way too late to tell him my real name is Jason. This has been happening for almost 2 years now. Im a truck driver so I dont see him every day, but every time I see him he says "yooo wus up Isaiah" and I am fearing the day he finds out the truth. I am so dumb for not correcting him, but how on earth can I fix this before he finds out?