diff -uNr xf86-input-evdev-2.7.0_old/src/evdev.c xf86-input-evdev-2.7.0_new/src/evdev.c
--- xf86-input-evdev-2.7.0_old/src/evdev.c	2012-02-26 23:55:24.000000000 +0000
+++ xf86-input-evdev-2.7.0_new/src/evdev.c	2012-10-04 21:32:31.559124808 +0100
@@ -1598,7 +1598,7 @@
         if (axis == REL_WHEEL)
             SetScrollValuator(device, axnum, SCROLL_TYPE_VERTICAL, -1.0, SCROLL_FLAG_PREFERRED);
         else if (axis == REL_DIAL)
-            SetScrollValuator(device, axnum, SCROLL_TYPE_VERTICAL, -1.0, SCROLL_FLAG_NONE);
+            SetScrollValuator(device, axnum, SCROLL_TYPE_HORIZONTAL, -1.0, SCROLL_FLAG_NONE);
         else if (axis == REL_HWHEEL)
             SetScrollValuator(device, axnum, SCROLL_TYPE_HORIZONTAL, -1.0, SCROLL_FLAG_NONE);
 #endif