Snack brand giant Mondelez is suing grocery chain Aldi, alleging that the grocer’s store-brand snacks “blatantly” copied Mondelez packaging.

Mondelez International, a corporate giant behind the name-brand versions of many snacks, contends that Aldi is mimicking its packaging to dupe customers.

Oreo maker and snack giant Mondelez is suing grocery chain Aldi over allegations that the chain’s store-brand product “blatantly copies” its famous cookies. Mondelez, which also owns Chips Ahoy, filed the lawsuit against the Illinois-headquartered German chain in the federal court for the Northern District of Illinois.