diff -urN comment_notify.orig/comment_notify.module comment_notify/comment_notify.module
--- comment_notify.orig/comment_notify.module	2010-03-11 00:29:40.000000000 +0200
+++ comment_notify/comment_notify.module	2011-05-28 06:33:46.000000000 +0300
@@ -79,7 +79,7 @@
   global $user;
 
   // Only alter the form if it's a comment form and the user has the permission to subscribe.
-  if ($form_id == 'comment_form' && (user_access('subscribe to comments') || user_access('administer comments'))) {
+  if ($form_id == 'comment_form' && (user_access('subscribe to comments'))) {
     // Only add the checkbox if this is an enabled content type
     $node = node_load($form['nid']['#value'] ? $form['nid']['#value'] : $form['nid']['#default_value']);
     $enabled_types = variable_get('comment_notify_node_types', drupal_map_assoc(array($node->type)));