diff --git a/sound/soc/codecs/tlv320aic31xx.c b/sound/soc/codecs/tlv320aic31xx.c
index fa47bfcb93e9..9b37e98da0db 100644
--- a/sound/soc/codecs/tlv320aic31xx.c
+++ b/sound/soc/codecs/tlv320aic31xx.c
@@ -1264,8 +1264,8 @@ static int aic31xx_set_bias_level(struct snd_soc_component *component,
 	return 0;
 }
 
-int aic31xx_set_jack(struct snd_soc_component *component,
-		     struct snd_soc_jack *jack, void *data)
+static int aic31xx_set_jack(struct snd_soc_component *component,
+			    struct snd_soc_jack *jack, void *data)
 {
 	struct aic31xx_priv *aic31xx = snd_soc_component_get_drvdata(component);