Food manufacturing company Mellace Family Brands California, Inc. has recalled some of its Wegmans semi-sweet chocolate nonpareils because they contain an “undeclared milk allergen,” the U.S. Food & Drug Administration announced on Monday.

An undeclared milk allergen has prompted a recall of some lots of Wegmans semi-sweet chocolate nonpareils sent to stores in Washington, D.C., and eight states.

A popular chocolate item sold at Wegmans grocery stores has been recalled over allergy concerns. On Monday, the Food and Drug Administration (FDA) announced that Mellace Family Brands California, Inc.