diff --git a/drivers/misc/sony-laptop.c b/drivers/misc/sony-laptop.c
index 9a803e1..91da688 100644
--- a/drivers/misc/sony-laptop.c
+++ b/drivers/misc/sony-laptop.c
@@ -845,7 +845,7 @@
 };
 
 /* SNC-only model map */
-struct dmi_system_id sony_nc_ids[] = {
+static struct dmi_system_id sony_nc_ids[] = {
 		{
 			.ident = "Sony Vaio FE Series",
 			.callback = sony_nc_C_enable,