diff --git a/admin/user_perm.php b/admin/user_perm.php
index b0384dd0c..ba9411dc7 100644
--- a/admin/user_perm.php
+++ b/admin/user_perm.php
@@ -67,6 +67,11 @@ elseif (isset($_POST['trueify'])
 // |                             template init                             |
 // +-----------------------------------------------------------------------+
 
+if ($page['user'] == $conf['guest_id'])
+{
+  $page['warnings'][] = l10n('Users not logged in will have these permissions applied. Grant access to private albums only with great caution.');
+}
+
 $template->set_filenames(
   array(
     'user_perm' => 'user_perm.tpl',
diff --git a/language/en_UK/admin.lang.php b/language/en_UK/admin.lang.php
index 429e9d6f9..5fde73e05 100644
--- a/language/en_UK/admin.lang.php
+++ b/language/en_UK/admin.lang.php
@@ -1437,5 +1437,6 @@ $lang['Change logo'] = 'Change logo';
 $lang['Latest update'] = 'Latest update';
 $lang['See available updates'] = 'See available updates';
 $lang['You are about to delete %s groups, are you sure?'] = 'You are about to delete %s groups, are you sure?';
+$lang['Users not logged in will have these permissions applied. Grant access to private albums only with great caution.'] = 'Users not logged in will have these permissions applied. Grant access to private albums only with great caution.';
 
 // Leave this line empty
\ No newline at end of file
diff --git a/language/fr_FR/admin.lang.php b/language/fr_FR/admin.lang.php
index 8a44fd3a4..ba8bf8aa1 100644
--- a/language/fr_FR/admin.lang.php
+++ b/language/fr_FR/admin.lang.php
@@ -1444,5 +1444,6 @@ $lang['Understood, do not show again'] = 'Compris, ne plus afficher';
 $lang['Latest update'] = 'Dernière mise à jour';
 $lang['See available updates'] = 'Voir les mises à jour disponibles';
 $lang['You are about to delete %s groups, are you sure?'] = 'Vous êtes sur le point de supprimer %s groupes, êtes-vous sûr ?';
+$lang['Users not logged in will have these permissions applied. Grant access to private albums only with great caution.'] = 'Ces permissions s\'appliqueront aux utilisateurs non connectés. Faites ainsi preuve de la plus grande précaution en accordant l\'accès aux albums privés.';
 
 // Leave this line empty