A two-piece anchorage device for securing a cable conduit to a wall opening. The device includes a tubular body piece adapted to extend through the wall opening and to be secured to the outer periphery of the cable conduit. The body piece includes a collar adapted to operatively engage a side of the wall opening and a lower body portion adapted to extend longitudinally along the cable conduit. An upper body portion is connected to a side of the collar opposite the lower body portion and has a groove therein. The anchorage device also includes an anchor clip piece having stops engaging the groove of the upper body portion and a plurality of depressible prongs adapted to engage a side of the wall opening.