diff --git modules/comment/comment.module modules/comment/comment.module
index f8c3a01..c8f5c42 100644
--- modules/comment/comment.module
+++ modules/comment/comment.module
@@ -2215,7 +2215,7 @@ function comment_form_submit($form, &$form_state) {
   $comment = comment_form_submit_build_comment($form, $form_state);
   if (user_access('post comments') && (user_access('administer comments') || $node->comment == COMMENT_NODE_OPEN)) {
     // Save the anonymous user information to a cookie for reuse.
-    if (user_is_anonymous()) {
+    if (user_is_anonymous() && !$comment->uid) {
       user_cookie_save(array_intersect_key($form_state['values'], array_flip(array('name', 'mail', 'homepage'))));
     }