The present invention proposes a capsule for containing beverage ingredients, the capsule being designed for insertion in a beverage production device, the capsule comprising a body portion having at least a circumferential sidewall for enclosing an ingredients compartment of the capsule, and a sealing member, wherein the sealing member comprises a first flange-like rim portion and a second portion which is at least partially overlapping with an inner surface of the sidewall of the body portion.