diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c
index f9942841df18..c86691c431fd 100644
--- a/mm/hugetlb_cgroup.c
+++ b/mm/hugetlb_cgroup.c
@@ -772,6 +772,7 @@ static void __init __hugetlb_cgroup_file_dfl_init(int idx)
 	/* Add the numa stat file */
 	cft = &h->cgroup_files_dfl[6];
 	snprintf(cft->name, MAX_CFTYPE_NAME, "%s.numa_stat", buf);
+	cft->private = MEMFILE_PRIVATE(idx, 0);
 	cft->seq_show = hugetlb_cgroup_read_numa_stat;
 	cft->flags = CFTYPE_NOT_ON_ROOT;