Nike has decided to sue Wal-Mart over a dispute on patent.

Nike is alleging alleging the retailer is selling shoes that infringe on Nike’s patented designs.

In its complaint, which was filed this week, Nike says that the Wal-Mart shoes too closely resemble its Nike Shox basketball footwear. The Shox line has a spring-like device in the heel made up of a foam material that enhances durability and spring.

Nike wants the world’s largest retailer to stop selling the shoes and is seeking damages, according to the complaint filed in the U.S. District Court for the Northern District of Illinois.

Wal-Mart has yet to make a public response and is unlikely to do so stating that it does not comment on pending litigation.

Nike does not sell its products in Wal-Mart and has long argued that its brand would be devalued if sold in discount chains.

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