Guinness Apologizes for an Embarrassing Mistake in St. Patrick’s Day Ad

March 14, 2016 Updated: March 14, 2016

Guinness, the stout maker, issued an apology for making an error on a St. Patrick’s Day advertisement in Canada.

One would expect that Guinness, which is based in Ireland, wouldn’t commit such an egregious error. It annoyed some commuters on the Toronto subway system, as reported by The Mirror.

The ad included a four-leaf clover instead of the traditional three-leaf shamrock.

The four-leaf clover, normally associated with good luck, isn’t linked to St. Patrick’s Day, which will be on March 17.

A shamrock (Public Domain)

The shamrock is the symbol for Ireland, and it is said to have been used by Saint Patrick as a metaphor for the Christian Holy Trinity.

Guinness Canada issued a response after the gaffe was spotted.

“In the excitement of getting ready for next week, we obviously made a mistake and thank you for bringing it to our attention,” the beer-maker wrote. “As Canadians, we will say ‘Sorry!’ and let you know we are removing the posters immediately.”