Perrigo Company plc is recalling thousands of containers of baby formula after discovering one of the lots may contain metal, the FDA announced Friday.

The recall affects 23,388 containers of the 35oz Parent’s Choice Advantage Infant Formula Milk-Based Powder with Iron, which is exclusively sold at Walmart stores nationwide.

Although there have been no reports of injury or illness because of the recalled product, the company issued the recall after a customer reported the presence of metal.

The affected formula has the Lot Code C26EVFV with a “use by” date of February 26, 2021, which can be found at the bottom of the package.