diff --git a/drivers/mcb/mcb-core.c b/drivers/mcb/mcb-core.c
index 0c939f867f0d..267045b76505 100644
--- a/drivers/mcb/mcb-core.c
+++ b/drivers/mcb/mcb-core.c
@@ -165,7 +165,7 @@ static const struct bus_type mcb_bus_type = {
 	.shutdown = mcb_shutdown,
 };
 
-static struct device_type mcb_carrier_device_type = {
+static const struct device_type mcb_carrier_device_type = {
 	.name = "mcb-carrier",
 	.groups = mcb_carrier_groups,
 };