diff --git a/language/mn_MN/install.lang.php b/language/mn_MN/install.lang.php
index 8ade7c9a5..1b8b4a88e 100755
--- a/language/mn_MN/install.lang.php
+++ b/language/mn_MN/install.lang.php
@@ -1,24 +1,24 @@
 <?php
-// +-----------------------------------------------------------------------+
-// | Piwigo - a PHP based photo gallery                                    |
-// +-----------------------------------------------------------------------+
-// | Copyright(C) 2008-2013 Piwigo Team                  http://piwigo.org |
-// | Copyright(C) 2003-2008 PhpWebGallery Team    http://phpwebgallery.net |
-// | Copyright(C) 2002-2003 Pierrick LE GALL   http://le-gall.net/pierrick |
-// +-----------------------------------------------------------------------+
-// | This program is free software; you can redistribute it and/or modify  |
-// | it under the terms of the GNU General Public License as published by  |
-// | the Free Software Foundation                                          |
-// |                                                                       |
-// | This program is distributed in the hope that it will be useful, but   |
-// | WITHOUT ANY WARRANTY; without even the implied warranty of            |
-// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      |
-// | General Public License for more details.                              |
-// |                                                                       |
-// | You should have received a copy of the GNU General Public License     |
-// | along with this program; if not, write to the Free Software           |
-// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
-// | USA.                                                                  |
+// +-----------------------------------------------------------------------+
+// | Piwigo - a PHP based photo gallery                                    |
+// +-----------------------------------------------------------------------+
+// | Copyright(C) 2008-2013 Piwigo Team                  http://piwigo.org |
+// | Copyright(C) 2003-2008 PhpWebGallery Team    http://phpwebgallery.net |
+// | Copyright(C) 2002-2003 Pierrick LE GALL   http://le-gall.net/pierrick |
+// +-----------------------------------------------------------------------+
+// | This program is free software; you can redistribute it and/or modify  |
+// | it under the terms of the GNU General Public License as published by  |
+// | the Free Software Foundation                                          |
+// |                                                                       |
+// | This program is distributed in the hope that it will be useful, but   |
+// | WITHOUT ANY WARRANTY; without even the implied warranty of            |
+// | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU      |
+// | General Public License for more details.                              |
+// |                                                                       |
+// | You should have received a copy of the GNU General Public License     |
+// | along with this program; if not, write to the Free Software           |
+// | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
+// | USA.                                                                  |
 // +-----------------------------------------------------------------------+
 $lang['It appears your webhost is currently running PHP %s.'] = 'Таны вэбсервер PHP %s хувилбарыг ашиглаж байна';
 $lang['mail address must be like xxx@yyy.eee (example : jack@altern.org)'] = 'имэйл хаяг xxx@yyy.eee гэсэн хэлбэртэй байх ёстой (жишээ нь: jack@altern.org)';
@@ -44,4 +44,9 @@ $lang['PHP 5 is required'] = 'PHP 5 шаардлагатай';
 $lang['Download the config file'] = 'Тохиргооны файлыг татах';
 $lang['Admin configuration'] = 'Админий тохиргоо';
 $lang['Basic configuration'] = 'Үндсэн тохиргоо';
+$lang['webmaster login can\'t contain characters \' or "'] = 'Вэбмастерийн нэрэнд \' or " гэсэн тэмдэгт орох ёсгүй.';
+$lang['verification'] = 'баталгаажуулалт';
+$lang['Visitors will be able to contact site administrator with this mail'] = 'Хэрэглэгчид энэ имэйл хаягаар админтай холбогдох боломжтой';
+$lang['Hope to see you back soon.'] = 'Тантай удахгүй эргэн уулзана гэдэгт найдаж байна.';
+$lang['Welcome to your new installation of Piwigo!'] = 'Piwigo-г шинээр суулгах хэсэгт тавтай морилно уу!';
 ?>
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