(CNN) - Frito-Lay is recalling barbecue flavored potato chips that may contain undeclared milk products.
The company says it happened when barbecue chip bags were accidentally filled with another flavor.
That flavor contains milk products, which could make people with certain allergies ill and in some cases, be life threatening.
The incorrect bags went out to more than 10 states.
The recall affects several sizes of barbecue chip bags, from one ounce to 15 and a half ounce bags.
No other flavors are affected.