The invention relates to a carpoule holder (8) for receiving a carpoule (10) and for fastening to a drive mechanism and/or to a dosing mechanism and/or to a housing (6) of an injection device, with a holding element (9, 9′, 9″) for fastening the carpoule (10) to or in the carpoule holder (8), wherein the holding element (9, 9′, 9″) is designed in such a way that it can be connected to the carpoule holder (8) and can be received completely by the carpoule holder (8).
