diff --git a/sound/soc/codecs/rt5665.c b/sound/soc/codecs/rt5665.c
index a4c07c2ee41497fe17e45596e05921ace86eeefb..7a0244e5e3210449e8170777b6998fa6aebba5da 100644
--- a/sound/soc/codecs/rt5665.c
+++ b/sound/soc/codecs/rt5665.c
@@ -3912,6 +3912,7 @@ static const struct snd_soc_dapm_route rt5665_dapm_routes[] = {
 	{"Mono MIX", "MONOVOL Switch", "MONOVOL"},
 	{"Mono Amp", NULL, "Mono MIX"},
 	{"Mono Amp", NULL, "Vref2"},
+	{"Mono Amp", NULL, "Vref3"},
 	{"Mono Amp", NULL, "CLKDET SYS"},
 	{"Mono Amp", NULL, "CLKDET MONO"},
 	{"Mono Playback", "Switch", "Mono Amp"},