(EN) There is described a corner fitting for connecting two sections of a cable trunking system that extend to either side of an external corner, the two sections having aligned compartments for containing a cable. The corner fitting comprises respective aligned end apertures for interfacing with the compartments of the two sections of adjacent trunking, and a corner compartment extending between the aligned end apertures. The corner compartment comprises a stop member positioned out of alignment with the aligned end apertures for guiding the cable between the aligned compartments of the two sections of adjacent trunking around the corner fitting and for deflecting the cable along the length of the corner. The stop member is positioned for stopping the cable from being pulled back into alignment. There is also described a cable trunking assembly comprising such a corner fitting.