A drop of liquid on a substrate will often remain pinned in place even if the substrate is inclined vertically. Such is the case of drops on a window after the rain. This gravity-defying behavior is due to imperfections in the surface which make the motion of the contact-line energetically costly. Naively, one might expect that if the incline is shaken up and down, the drop will come loose and slide downward. We showed that a drop on an incline can climb up the surface when the substrate is vibrated harmonically in the vertical direction.