diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 0c00208b423e0fba1c7a9f2ddc907880108be9c7..2305e1ab978ea0e09f6a7eb8cdb4e3dc78b0533e 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -585,7 +585,7 @@ static struct attribute *dock_attributes[] = {
 	NULL
 };
 
-static struct attribute_group dock_attribute_group = {
+static const struct attribute_group dock_attribute_group = {
 	.attrs = dock_attributes
 };