diff --git a/mm/slab.c b/mm/slab.c
index 70784b8..8fdaffa 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -1042,7 +1042,7 @@
 static struct array_cache **alloc_alien_cache(int node, int limit)
 {
 	struct array_cache **ac_ptr;
-	int memsize = sizeof(void *) * MAX_NUMNODES;
+	int memsize = sizeof(void *) * nr_node_ids;
 	int i;
 
 	if (limit > 1)