Western burger haunt In-N-Out will soon ban employees from wearing masks in five states, according to a leaked memo attributed to the fast-food joint.

The company announced its new policy in an internal statement, which was shared on Twitter last week by Dr. Lucky Tran, a public health advocate who works at Columbia University. On Monday, Insider confirmed the policy in the leaked memo via the companys customer service department.

In-N-Out, which is known for its cheery staff, no-nonsense burgers and Bible verse-bearing cups and wrappers, said its employees in Arizona, Colorado, Nevada, Texas and Utah will no longer be allowed to wear protective face coverings as of Aug. 14.

The company said that the policy was being put in place to emphasize the importance of customer service and the ability to show our Associates smiles and other facial features while considering the health and well-being of all individuals.