diff --git a/sound/soc/codecs/wm_adsp.c b/sound/soc/codecs/wm_adsp.c
index b943dde8dbe594c382ac588f71d1dc90890421b5..7320fcacd86af4471a0dfa3bb07b9ffc7d37fbcb 100644
--- a/sound/soc/codecs/wm_adsp.c
+++ b/sound/soc/codecs/wm_adsp.c
@@ -967,7 +967,6 @@ static int wmfw_add_ctl(struct wm_adsp *dsp, struct wm_coeff_ctl *ctl)
 	kcontrol = kzalloc(sizeof(*kcontrol), GFP_KERNEL);
 	if (!kcontrol)
 		return -ENOMEM;
-	kcontrol->iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 
 	kcontrol->name = ctl->name;
 	kcontrol->info = wm_coeff_info;