Get your free fries this weekend.

Burger King is marking St. Patrick’s Day with free French fries.

This weekend, Saturday, March 17 and Sunday, March 18, you can head into participating Burger King restaurants to get a free value size order of fries.

"Free fries for St. Patrick's Day weekend is the BURGER KING® way of sharing the luck of the Irish with all of our guests," Burger King’s senior vice president of North America marketing, Alex Macedo said in a news release.

If you really want to get into the St. Patrick’s Day spirit, Burger King will also offer special green ketchup.

You might remember green ketchup from a while back. Heinz offered it in 2000 but the product was discontinued in 2003.