diff --git a/libarmbox/video.cpp b/libarmbox/video.cpp
index b3e5f96..c042b2c 100644
--- a/libarmbox/video.cpp
+++ b/libarmbox/video.cpp
@@ -362,9 +362,15 @@ void cVideo::closeDevice(void)
 int cVideo::setAspectRatio(int aspect, int mode)
 {
        static const char *a[] = { "n/a", "4:3", "14:9", "16:9" };
-//     static const char *m[] = { "panscan", "letterbox", "bestfit", "nonlinear", "(unset)" };
-       static const char *m[] = { "letterbox", "panscan", "bestfit", "nonlinear", "(unset)" };
+       static const char *m[] = { "panscan", "letterbox", "bestfit", "nonlinear", "(unset)" };
        int n;
+
+       /* workaround for mix-up panscan/letterbox on hd51 */
+       if (mode == 0)
+               mode = 1;
+       else if (mode == 1)
+               mode = 0;
+
        lt_debug("%s: a:%d m:%d  %s\n", __func__, aspect, mode, m[(mode < 0||mode > 3) ? 4 : mode]);

        if (aspect > 3 || aspect == 0)