diff --git a/mm/nommu.c b/mm/nommu.c
index 1fe0ee2..8dba41c 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -1800,7 +1800,7 @@ static int __meminit init_user_reserve(void)
 {
 	unsigned long free_kbytes;
 
-	free_kbytes = global_zone_page_state(NR_FREE_PAGES) << (PAGE_SHIFT - 10);
+	free_kbytes = K(global_zone_page_state(NR_FREE_PAGES));
 
 	sysctl_user_reserve_kbytes = min(free_kbytes / 32, 1UL << 17);
 	return 0;
@@ -1821,7 +1821,7 @@ static int __meminit init_admin_reserve(void)
 {
 	unsigned long free_kbytes;
 
-	free_kbytes = global_zone_page_state(NR_FREE_PAGES) << (PAGE_SHIFT - 10);
+	free_kbytes = K(global_zone_page_state(NR_FREE_PAGES));
 
 	sysctl_admin_reserve_kbytes = min(free_kbytes / 32, 1UL << 13);
 	return 0;