diff --git a/arch/arm/plat-s3c64xx/dev-audio.c b/arch/arm/plat-s3c64xx/dev-audio.c
index 9e07344913d9..a21a88fbb7e3 100644
--- a/arch/arm/plat-s3c64xx/dev-audio.c
+++ b/arch/arm/plat-s3c64xx/dev-audio.c
@@ -118,7 +118,7 @@ static struct resource s3c64xx_pcm0_resource[] = {
 	},
 };
 
-struct s3c_audio_pdata s3c_pcm0_pdata = {
+static struct s3c_audio_pdata s3c_pcm0_pdata = {
 	.cfg_gpio = s3c64xx_pcm_cfg_gpio,
 };
 
@@ -151,7 +151,7 @@ static struct resource s3c64xx_pcm1_resource[] = {
 	},
 };
 
-struct s3c_audio_pdata s3c_pcm1_pdata = {
+static struct s3c_audio_pdata s3c_pcm1_pdata = {
 	.cfg_gpio = s3c64xx_pcm_cfg_gpio,
 };