A fastening means is for attaching a cable to a tubular body. The tubular body has a sleeve with a first end face and a second end face. The fastening means has a first attachment part arranged with a first abutment surface for resting against the first end face; a second attachment part arranged with a second abutment surface for resting against the second end face; both the first attachment part and the second attachment part including a through cable recess; and a tightening device for pulling the first attachment part and the second attachment part towards each other. The fastening means is characterized by the first attachment part and the second attachment part being adjustably connected in a spaced-apart manner via the tightening device.