diff --git a/includes/nodequeue.admin.inc b/includes/nodequeue.admin.inc
index ca2898c..9f72a32 100644
--- a/includes/nodequeue.admin.inc
+++ b/includes/nodequeue.admin.inc
@@ -1007,7 +1007,7 @@ function nodequeue_save_subqueue_order($nodes, $qid, $sqid) {
   }
   $nodes = $clean;
 
-  array_walk($clean, create_function('&$node', '$node = serialize($node);'));
+  array_walk($clean, '_nodequeue_serialize');
 
   if (count(array_unique($clean)) < count($nodes)) {
     return array(NODEQUEUE_DUPLICATE_POSITION, 'Duplicate position values are not allowed. New subqueue order not saved.');
@@ -1054,6 +1054,10 @@ function nodequeue_save_subqueue_order($nodes, $qid, $sqid) {
   return array(NODEQUEUE_OK, 'The queue has been updated.');
 }
 
+function _nodequeue_serialize(&$node) {
+  $node = serialize($node);
+}
+
 function nodequeue_arrange_subqueue_form_clear_submit($form, &$form_state) {
   $form_state['redirect'] = 'admin/structure/nodequeue/' . $form['nodes']['#queue']['qid'] . '/clear/' . $form['#subqueue']['sqid'];
 }