Hawaii teachers can get a free pick-me-up at McDonald’s Restaurants of Hawaii this month.

In honor of Teacher Appreciation Month, teachers can get a free medium cup of hot or iced coffee every Tuesday in September at participating locations in Hawaii.

No purchase is necessary, and teachers must present their valid 2016 school ID upon ordering.

The offer is valid all day on Sept. 6, 13, 20, and 27.

There’s a limit of one free cup of coffee per person per visit.