LOS ANGELES (BRAIN) — X Games medalist Ryan Guettler is suing Hyper Bicycles and Walmart over use of his image in a photograph on the packaging of some Hyper accessories sold at Walmart stores.

Guettler had an endorsement deal with Hyper from September 2014 through August 2015, allowing Hyper to use his image and likeness in promotions and packaging of BMX products.

In a complaint filed in Los Angeles this week, he said Hyper continued using the image after the agreement ended. Specifically, he said Hyper used his image in packaging for SNAFU accessories that were sold in Walmart this year.

His attorney sent cease and desist letters to Walmart and Hyper in July. According to the complaint, Walmart did not respond.

Guettler is asking for damages and legal expenses. The court issued summonses for Walmart and Hyper on Wednesday.