diff --git a/data/lenovo-ideapad-duet.tablet b/data/lenovo-ideapad-duet.tablet
index 5a539f57..7b949a54 100644
--- a/data/lenovo-ideapad-duet.tablet
+++ b/data/lenovo-ideapad-duet.tablet
@@ -6,7 +6,7 @@
 [Device]
 Name=Lenovo Ideapad Duet
 Class=ISDV4
-DeviceMatch=i2c:27C6:0E30
+DeviceMatch=i2c:27c6:0e30
 Width=9
 Height=5
 IntegratedIn=Display;System