diff --git a/data/devices/logitech-g502-x-wireless.device b/data/devices/logitech-g502-x-wireless.device
index e6b68628..634db3eb 100644
--- a/data/devices/logitech-g502-x-wireless.device
+++ b/data/devices/logitech-g502-x-wireless.device
@@ -3,3 +3,6 @@ Name=Logitech G502 X Wireless
 DeviceMatch=usb:046d:c098;usb:046d:409f
 DeviceType=mouse
 Driver=hidpp20
+
+[Driver/hidpp20]
+Quirk=INDEX_OFFSET
diff --git a/data/devices/logitech-g502-x.device b/data/devices/logitech-g502-x.device
index 088c42ef..38618a39 100644
--- a/data/devices/logitech-g502-x.device
+++ b/data/devices/logitech-g502-x.device
@@ -3,3 +3,6 @@ Name=Logitech G502 X
 DeviceMatch=usb:046d:c099
 DeviceType=mouse
 Driver=hidpp20
+
+[Driver/hidpp20]
+Quirk=INDEX_OFFSET