diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index f1c909f1b239..b32beb9d1844 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -133,7 +133,7 @@ static int find_slot_from_contactid(struct mt_device *td)
 	return -1;
 }
 
-struct mt_class mt_classes[] = {
+static struct mt_class mt_classes[] = {
 	{ .name = MT_CLS_DEFAULT,
 		.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
 	{ .name = MT_CLS_SERIAL,