diff --git a/quirks/50-system-chicony.quirks b/quirks/50-system-chicony.quirks
index fce512ee..1ce3b8dc 100644
--- a/quirks/50-system-chicony.quirks
+++ b/quirks/50-system-chicony.quirks
@@ -11,7 +11,7 @@ AttrTPKComboLayout=below
 # Lenovo MIIX 720 comes with a detachable touchpad-keyboard combo
 [Chicony Lenovo MIIX 720 Touchpad]
 MatchUdevType=touchpad
-MatchBus=0x03
+MatchBus=usb
 MatchVendor=0x17ef
 MatchProduct=0x60a6
 AttrTPKComboLayout=below