diff --git a/sound/soc/codecs/cs4270.c b/sound/soc/codecs/cs4270.c
index 5fd8e0d..6d4bdc6 100644
--- a/sound/soc/codecs/cs4270.c
+++ b/sound/soc/codecs/cs4270.c
@@ -518,7 +518,7 @@
 	.digital_mute	= cs4270_dai_mute,
 };
 
-struct snd_soc_dai_driver cs4270_dai = {
+static struct snd_soc_dai_driver cs4270_dai = {
 	.name = "cs4270-hifi",
 	.playback = {
 		.stream_name = "Playback",