A hearing assistance device comprises a housing component (32, 33) enclosing processing circuitry arranged in a compact block structure (20), at least one actively driven antenna element (23, 24) arranged in between the compact block structure (20) and the housing component (32, 33), and a parasitic element (25, 26) integrated in the housing component (32, 33) and extending along at least a part of the at least one actively driven antenna element (23, 24). The parasitic element (25, 26) is electrically isolated from the at least one actively driven antenna element (23, 24).