diff --git a/mm/page_idle.c b/mm/page_idle.c
index 1b0f48c62316b3ebf1e09cc7b0a16f413db7e9ae..4bd03a8d809e9ab2d4044955525ef6c1d28d2f08 100644
--- a/mm/page_idle.c
+++ b/mm/page_idle.c
@@ -204,7 +204,7 @@ static struct bin_attribute *page_idle_bin_attrs[] = {
 	NULL,
 };
 
-static struct attribute_group page_idle_attr_group = {
+static const struct attribute_group page_idle_attr_group = {
 	.bin_attrs = page_idle_bin_attrs,
 	.name = "page_idle",
 };