An injection device comprises an injector body arranged for mounting a syringe with a needle shield and a cap disposed at one end of the injector body. The cap comprises a main body with a first open end and a second closed end, the main body comprising one or more openings through an outer surface and an engaging member disposed externally on the main body, which comprises one or more protruding elements arranged to extend inwards through the one or more corresponding openings in the outer surface of the main body and configured to engage with the needle shield.
