diff --git a/sound/soc/zte/zx296702-i2s.c b/sound/soc/zte/zx296702-i2s.c
index cf6005c33fb4f7eaca5e1256f658196a86fbcff7..472fde3b6c58ceb4a4b45045bb4810748fd512b6 100644
--- a/sound/soc/zte/zx296702-i2s.c
+++ b/sound/soc/zte/zx296702-i2s.c
@@ -355,7 +355,7 @@ static const struct snd_soc_component_driver zx_i2s_component = {
 	.name			= "zx-i2s",
 };
 
-struct snd_soc_dai_driver zx_i2s_dai = {
+static struct snd_soc_dai_driver zx_i2s_dai = {
 	.name	= "zx-i2s-dai",
 	.id	= 0,
 	.probe	= zx_i2s_dai_probe,