diff --git a/usr/40-libinput.conf-HDMI7C b/usr/40-libinput.conf-HDMI7C
index d5e5965..2207d9d 100644
--- a/usr/40-libinput.conf-HDMI7C
+++ b/usr/40-libinput.conf-HDMI7C
@@ -23,7 +23,7 @@ EndSection
 Section "InputClass"
         Identifier "libinput touchscreen catchall"
         MatchIsTouchscreen "on"
-		Option "CalibrationMatrix" "0 1 0 -1 0 1 0 0 1"
+	Option "CalibrationMatrix" "1 0 0 0 1 0 0 0 1"
         MatchDevicePath "/dev/input/event*"
         Driver "libinput"
 EndSection