diff --git a/vm/zone.c b/vm/zone.c
index 1d9e1a5..f813eef 100644
--- a/vm/zone.c
+++ b/vm/zone.c
@@ -105,11 +105,9 @@ static size_t zone_free_bytes(struct vm_zone *z)
 	for (enum vm_page_order i = VM_PAGE_MIN_ORDER; i <= VM_PAGE_MAX_ORDER;
 	     i++) {
 		size_t page_bytes = vm_page_order_to_bytes(i);
-		size_t nr_pages = 0;
 		queue_foreach(struct vm_page, pg, &z->z_free_pages[i], p_list)
 		{
 			free_bytes += page_bytes;
-			nr_pages++;
 		}
 	}