diff --git a/kernel/power/main.c b/kernel/power/main.c
index d401c21136d1c80b1996ce1c19c5b8f26bcf8adf..42bd800a6755be14cea9a296aa5c7db57bd7fdea 100644
--- a/kernel/power/main.c
+++ b/kernel/power/main.c
@@ -705,7 +705,7 @@ static struct attribute * g[] = {
 	NULL,
 };
 
-static struct attribute_group attr_group = {
+static const struct attribute_group attr_group = {
 	.attrs = g,
 };