With more than 1,200 locations across the U.S., Firehouse Subs has built a reputation around limited-time giveaways. But the sandwich chain’s latest promotion is turning heads for one very specific reason: customers named Mike—or anything close to it—can score a free sub just by showing ID.

According to The New York Post , on May 6, the company launched a one-day promotion tied to its new Steak & Cheese Melt sandwich, offering a free medium sub to anyone whose name falls within the brand’s “Mike family.” That includes Michael, Mike, Mikey, Miguel, Michelle, Michele, Michaela, and similar variations.

Customers only need to present a valid photo ID at participating U.S.…