NEW YORK (AP) — McDonald’s new Fish McBites failed to hook enough diners to get the fast-food chain’s U.S. sales growing in February.

The world’s biggest hamburger chain said Friday that a key sales figure was down 3.3 percent in the U.S. for the month. When excluding the extra day of sales for February of last year, which was a leap year, the company said the figure was flat. That was despite the rollout of the Fish McBites nuggets in three sizes, which were also offered as the first new Happy Meal entree in a decade.