The invention relates to a head-up-display (1) comprising an image generating unit (13, 7, 8) and at least one mirror (9, 10) which is arranged in the beam path (2) downstream from the image generating unit (13; 7, 8). Traditional head-up-displays (1) require an expensive adjusting element by taking into account the individual geometry of the built-in windscreen (WS) for good image quality. According to the invention, the mirror (9, 10) is embodied in such a manner that it can be deformed by adjusting elements (15, 16) in order to facilitate the control thereof.