diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index 0c127cf..0ed1ec2 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -4279,7 +4279,7 @@ static int cx_auto_add_boost_volume(struct hda_codec *codec, int idx,
 
 	if (get_wcaps(codec, mux) & AC_WCAP_OUT_AMP) {
 		spec->imux_info[idx].boost = mux;
-		return cx_auto_add_volume(codec, label, " Boost", 0,
+		return cx_auto_add_volume(codec, label, " Boost", cidx,
 					  mux, HDA_OUTPUT);
 	}
 	return 0;