diff --git a/drivers/staging/fieldbus/dev_core.c b/drivers/staging/fieldbus/dev_core.c
index 370a229443a1..0053ebd91442 100644
--- a/drivers/staging/fieldbus/dev_core.c
+++ b/drivers/staging/fieldbus/dev_core.c
@@ -152,7 +152,7 @@ static const struct attribute_group fieldbus_group = {
 };
 __ATTRIBUTE_GROUPS(fieldbus);
 
-static struct class fieldbus_class = {
+static const struct class fieldbus_class = {
 	.name =		"fieldbus_dev",
 	.dev_groups =	fieldbus_groups,
 };