diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index b6e269b4d534b60c0560a07e9da471a9d7123b00..ffb8d3afc6b41d06fcc9bafdbef266e5019d28f4 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -4630,7 +4630,7 @@ static const struct attribute_group *rbd_attr_groups[] = {
 
 static void rbd_dev_release(struct device *dev);
 
-static struct device_type rbd_device_type = {
+static const struct device_type rbd_device_type = {
 	.name		= "rbd",
 	.groups		= rbd_attr_groups,
 	.release	= rbd_dev_release,