diff --git a/lib/pure/collections/lists.nim b/lib/pure/collections/lists.nim
index a08c629643..6e3ddf3975 100644
--- a/lib/pure/collections/lists.nim
+++ b/lib/pure/collections/lists.nim
@@ -188,13 +188,13 @@ func toDoublyLinkedList*[T](elems: openArray[T]): DoublyLinkedList[T] {.since: (
     result.add(elem)
 
 template itemsListImpl() {.dirty.} =
-  var it = L.head
+  var it {.cursor.} = L.head
   while it != nil:
     yield it.value
     it = it.next
 
 template itemsRingImpl() {.dirty.} =
-  var it = L.head
+  var it {.cursor.} = L.head
   if it != nil:
     while true:
       yield it.value