diff --git a/drivers/gpu/drm/omapdrm/displays/panel-sony-acx565akm.c b/drivers/gpu/drm/omapdrm/displays/panel-sony-acx565akm.c
index 346aefdb015f..ebf9ea471d57 100644
--- a/drivers/gpu/drm/omapdrm/displays/panel-sony-acx565akm.c
+++ b/drivers/gpu/drm/omapdrm/displays/panel-sony-acx565akm.c
@@ -503,7 +503,7 @@ static struct attribute *bldev_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group bldev_attr_group = {
+static const struct attribute_group bldev_attr_group = {
 	.attrs = bldev_attrs,
 };