The present invention is directed to a tonneau cover incorporating a cable system which generates the proper amount of cross-car tension, and still provides for the tonneau cover to be rolled up and stowed when not in use. The present invention is directed to a tonneau cover for a vehicle that is moveable between a stowed position and a deployed position. The tonneau cover has at least one pocket extending along a side of the tonneau cover, and at least one cable disposed in the pocket such that a first end of the cable extends out of a first end of the pocket, and a second end of the cable extends out of a second end of the pocket such that when the tonneau cover is in the deployed position, the cable applies tension to the tonneau cover.