diff --git a/drivers/staging/greybus/gbphy.c b/drivers/staging/greybus/gbphy.c
index 603de6f21fd119b16f84d82257f6216ec29c58bc..80c1da8224e6de7ae8681a86e05de7bdc7b11011 100644
--- a/drivers/staging/greybus/gbphy.c
+++ b/drivers/staging/greybus/gbphy.c
@@ -66,7 +66,7 @@ static const struct dev_pm_ops gb_gbphy_pm_ops = {
 			   gb_gbphy_idle)
 };
 
-static struct device_type greybus_gbphy_dev_type = {
+static const struct device_type greybus_gbphy_dev_type = {
 	.name	 =	"gbphy_device",
 	.release =	gbphy_dev_release,
 	.pm	=	&gb_gbphy_pm_ops,