Index: authcache.module
===================================================================
RCS file: /cvs/drupal-contrib/contributions/modules/authcache/authcache.module,v
retrieving revision 1.1
diff -u -p -r1.1 authcache.module
--- authcache.module	8 Mar 2009 00:56:55 -0000	1.1
+++ authcache.module	29 Dec 2009 21:01:47 -0000
@@ -219,7 +219,7 @@ function authcache_form_alter(&$form, $f
   if($user->uid && $is_page_authcache) {
 
     // Remove user-specific form token
-    $form['form_token']['#value'] = "";
+    unset($form['form_token']['#value']);
 
     // Token will be generated via ajax_authcache.php, but correct id is needed
     $form['form_token_id'] = array(