A housing for a radial flow compressor, particularly for a turbocharger, comprises a first housing part and a second housing part joined together to form at least part of the housing, each of the housing parts comprising at least one cavity, said cavities in fluid communication, when the housing parts are juxtaposed, forming a cavity system into which a fluid joining compound, such as an adhesive, thermoplastic material, etc., is introduced to form a solid joint of said both housing parts, wherein the housing parts are dimensioned such that a gap for introducing the fluid joining compound extends from a free housing surface of the housing parts when juxtaposed, along facing joining surface sections of the housing parts, and ports into the cavity system.