a device for adjusting a crank element of a openable motor vehicle roof , with a holding element which engages the crank element such that the crank element and the holding element can be moved relative to one another along a fin - like guideway on the crank element . the fin - like guideway is surrounded by a slide element which is formed on the holding element whereby the slide element can be rotated with respect to the holding element around an axis which is perpendicular to the plane in which the crank element and the holding element move .