diff --git a/tools/testing/selftests/mm/gup_longterm.c b/tools/testing/selftests/mm/gup_longterm.c
index 96dae0acd11a..eb8963e9d98f 100644
--- a/tools/testing/selftests/mm/gup_longterm.c
+++ b/tools/testing/selftests/mm/gup_longterm.c
@@ -510,7 +510,7 @@ int main(int argc, char **argv)
 	int i;
 
 	pagesize = getpagesize();
-	nr_hugetlbsizes = detect_hugetlb_page_sizes(hugetlbsizes,
+	nr_hugetlbsizes = hugetlb_setup(2, hugetlbsizes,
 						    ARRAY_SIZE(hugetlbsizes));
 
 	ksft_print_header();