It takes a lot of guts to quit your job.

Often it means stepping into the unknown. So, it’s not surprising that it can be tempting to stick with the status quo, especially if your boss promises to up their game — and possibly your salary — in a counteroffer.

However, once you’ve expressed your desire to move on, going back on that decision could be one of the worst moves of your career, according to recruitment specialist Oliver Cooke.

“If you’re a good performer in your business, the likelihood is your current employers will try to counteroffer (when you quit). You should be prepared for that,” Cooke told CNBC Make It.