Someone could be challenging the Kardashian sisters’ empire of beauty!

TMZ reports that Beverly Hills entrepreneur Michael Rey is looking to sue Kim, Kourtney and Khloe over their Khroma Beauty line, which he complains is too close in name to the business he co-owns, Chroma Makeup.

Michael’s main fear is that his high-end brand will be confused with the Kardashian’s “low-budget cosmetic products” that will soon be available at drugstores and department stores.

While no official suit has been filed yet, the sisters do have one thing on their side: trademarks galore. They’ve already requested to trademark phrases like “Kardashian Khroma” and “Khroma Beauty by Kourtney, Kim, and Khloe,” which could shield them from any potential lawsuits.

Sources: TMZ, TMZ