The Girl Scouts of the United States are urging people not to buy Raspberry Rally cookies that are posted online for resale.
The cookies, which were limited due to production issues, sold out in a day across the country.
The cookies are now popping up on websites like eBay.
Girl Scout staff say those resales are unauthorized and go against Scout ethics because the whole program is about teaching girls business skills.
Every other Girl Scout cookie is available on girlscoutcookies.org.