diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index 3fc201c..3ce872c 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -354,7 +354,7 @@ static int hdmi_eld_ctl_get(struct snd_kcontrol *kcontrol,
 	return 0;
 }
 
-static struct snd_kcontrol_new eld_bytes_ctl = {
+static const struct snd_kcontrol_new eld_bytes_ctl = {
 	.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE,
 	.iface = SNDRV_CTL_ELEM_IFACE_PCM,
 	.name = "ELD",