A medicament container retaining mechanism for a medicament delivery device includes at least one flexible retaining member arranged to a housing part of the medicament delivery device. The housing part is configured to receive a generally tubular medicament container. The at least one flexible retaining member is configured to interact with an outer surface of a received medicament container, exerting lateral clamping forces on the medicament container to prevent movement of the container in a generally lateral direction in the housing part.
