McDonald’s is testing two new chicken sandwiches made with a new chicken filet.  McDonald’s has kicked off a test of its new crispy chicken sandwich and the deluxe crispy chicken sandwich at McDonald’s locations in Houston, Texas and Knoxville, Tennessee.

“The sandwiches are being tested December 2 through January 26, 2020,” a McDonald’s representative said in a statement.  “Houston and Knoxville are getting a sneak peak, everyone else should stay tuned for what’s to come in 2020.”

The crispy chicken sandwich has a fried chicken filet topped with butter and pickles, while the deluxe version also includes tomatoes, lettuce, and mayo. Both sandwiches use a new chicken filet that has not been served at McDonald’s before, differentiating them from the McChicken and the buttermilk crispy chicken sandwich.

McDonald’s has been working to develop a new chicken sandwich for months, even before Popeyes and Chick-fil-A kicked off the chicken sandwich wars earlier this year.  McDonald’s franchisees were previously pushing the company to make the development of a new chicken sandwich its “top priority,” citing Chick-fil-A’s results. A sandwich that McDonald’s tested earlier this year apparently underwhelmed restaurant operators. McDonald’s reported in October that it lost part of its share in the chicken category during the so-called chicken sandwich wars.

According to leaked documents, McDonald’s is also planning to roll out chicken at breakfast in 2020, though the company has not yet announced what the new menu items will be.