A mounting arrangement for a drug-delivery device is proposed, the mounting arrangement comprising: a plug element (2) with a longitudinal axis (L) and a housing part (8) having a recess (10) with a side wall (12) which is adapted to receive the plug element (2). At least one of the plug element (2) or the side wall (12) of the recess are provided with a protrusion (16) for fixing the plug element (2) in a given position relative to the housing part (8) by a force-fit engagement. Furthermore, a coupling assembly is proposed, the coupling assembly comprising the plug element (2) and the housing part (8) being mechanically coupled to each other.
