The invention relates to a device for fixing a cable to a cable outlet connector (30), consisting of a clamping sleeve (2), a locking collar (20), and a locking slide (10), wherein the locking collar (20) encloses at least a part of the cable outlet connector (30) and at the same time encloses at least a part of the clamping sleeve (2), whereby the clamping sleeve (2) is held on the cable outlet connector (30), and wherein the locking slide (10) can be introduced into a guide (21) of the locking collar (20) provided for this purpose, and wherein the locking slide (10) comprises detent openings (12) which engage via detents (31) of the cable outlet connector (30) provided for this purpose such that the clamping sleeve (2), the locking collar (20) and the cable outlet connector (30) are captively connected to each other.