A beverage preparation machine (1) comprises: a beverage preparation module (2) that vibrates during use, in particular a module for preparing a beverage by circulating a liquid via a flavoring ingredient such a pre-portioned ingredient contained in a capsule; and a reservoir (4) for storing liquid and supplying such liquid to the beverage preparation module. The beverage preparation module and the reservoir are connected by a vibration-barrier mechanical connection (3, 45, 291, 431) for inhibiting or preventing propagation of vibrations from the beverage preparation module to the reservoir.