Index: nodequeue.module
===================================================================
--- nodequeue.module	(revision 240)
+++ nodequeue.module	(revision 242)
@@ -1092,6 +1092,7 @@
   );
   $form['add']['nid'] = array(
     '#type' => 'textfield',
+    '#maxlength' => 255,
     '#autocomplete_path' => 'nodequeue/autocomplete/'. $subqueue->sqid,
     '#default_value' => 'Enter the title of a node to add it to the queue',
   );