diff --git a/404.php b/404.php
index 9e7ead269a..668b6db347 100755
--- a/404.php
+++ b/404.php
@@ -3,7 +3,7 @@
 // 2011, Jean-Karim Bockstael <jeankarim@cblue.be>
 // ErrorDocument 404 /404/
 
-$language_file = array('document', 'index');
+$language_file = array('document');
 require_once '../main/inc/global.inc.php';
 
 $msg = get_lang('FileNotFound');
diff --git a/custompages/language.inc.php b/custompages/language.inc.php
index 7124c22e66..98e1893fc3 100755
--- a/custompages/language.inc.php
+++ b/custompages/language.inc.php
@@ -59,7 +59,7 @@ $chamilo_langs = array(null => 'english', 'en' => 'english', 'fr' => 'french', '
 $available_langs = array('en','fr');
 
 // Which language files will we need ?
-$language_file = array('index', 'registration', 'admin','userInfo');
+$language_file = array('registration', 'admin','userInfo');
 
 // Let's find out which language to serve to this particular browser
 $lang_match = $chamilo_langs[get_preferred_language($available_langs)];
diff --git a/custompages/language.php b/custompages/language.php
index 4402a6ad2d..d33ad33dbf 100755
--- a/custompages/language.php
+++ b/custompages/language.php
@@ -35,7 +35,7 @@ function custompages_get_lang($variable) {
 	return get_lang($variable, null, $_SESSION['user_language_choice']);
 }
 
-$language_file = array('index', 'registration', 'admin', 'userInfo');
+$language_file = array('registration', 'admin', 'userInfo');
 $available_langs = array('en', 'fr', 'es');
 $chamilo_langs = array(null => 'english', 'en' => 'english', 'fr' => 'french', 'nl' => 'dutch', 'de' => 'german', 'es' => 'spanish');
 $lang_match = $chamilo_langs[get_preferred_language($available_langs)];
diff --git a/index.php b/index.php
index 0ee1fd9db3..21329c8dd2 100755
--- a/index.php
+++ b/index.php
@@ -8,7 +8,7 @@
 use \ChamiloSession as Session;
 define('CHAMILO_HOMEPAGE', true);
 
-$language_file = array('index', 'userInfo');
+$language_file = array('userInfo');
 
 /* Flag forcing the 'current course' reset, as we're not inside a course anymore. */
 // Maybe we should change this into an api function? an example: CourseManager::unset();
diff --git a/main/admin/career_dashboard.php b/main/admin/career_dashboard.php
index 77f95d6a00..1cdcd9a166 100755
--- a/main/admin/career_dashboard.php
+++ b/main/admin/career_dashboard.php
@@ -9,7 +9,7 @@
  */
 
 // Language files that should be included.
-$language_file = array('index', 'admin');
+$language_file = array('admin');
 $cidReset = true;
 require_once '../inc/global.inc.php';
 $libpath = api_get_path(LIBRARY_PATH);
diff --git a/main/admin/configure_homepage.php b/main/admin/configure_homepage.php
index fd17e46824..4454f1bd7d 100755
--- a/main/admin/configure_homepage.php
+++ b/main/admin/configure_homepage.php
@@ -48,7 +48,7 @@ function home_tabs($file_logged_in)
 	}
 }
 
-$language_file = array('index', 'admin');
+$language_file = array('admin');
 $cidReset = true;
 require_once '../inc/global.inc.php';
 
diff --git a/main/admin/user_information.php b/main/admin/user_information.php
index cac91dbfd8..44d2fa6ddc 100755
--- a/main/admin/user_information.php
+++ b/main/admin/user_information.php
@@ -7,7 +7,7 @@
  */
 
 // name of the language file that needs to be included
-$language_file = array('registration', 'index', 'tracking', 'exercice', 'admin', 'gradebook');
+$language_file = array('registration', 'tracking', 'exercice', 'admin', 'gradebook');
 $cidReset = true;
 require_once '../inc/global.inc.php';
 $this_section = SECTION_PLATFORM_ADMIN;
diff --git a/main/auth/lostPassword.php b/main/auth/lostPassword.php
index 51448fa487..030fc75caf 100755
--- a/main/auth/lostPassword.php
+++ b/main/auth/lostPassword.php
@@ -18,7 +18,7 @@
  * Code
  */
 // name of the language file that needs to be included
-$language_file = array('registration', 'index');
+$language_file = array('registration');
 
 require_once '../inc/global.inc.php';
 
diff --git a/main/cron/lang/langstats.php b/main/cron/lang/langstats.php
index 33297b160c..9e6025ae43 100755
--- a/main/cron/lang/langstats.php
+++ b/main/cron/lang/langstats.php
@@ -16,7 +16,7 @@ $language_file = array(
 'gradebook', 'registration', 'admin', 'group',
 'help', 'reservation', 'hotspot',
 'scormdocument',
-'index', 'install', 'shibboleth',
+'install', 'shibboleth',
 'learnpath', 'course_info', 'survey',
 'tracking', 'create_course',
 'trad4all', 'document', 'userInfo', 'dropbox',
diff --git a/main/cron/lang/langstats_file_builder.php b/main/cron/lang/langstats_file_builder.php
index 0f7830c4a4..1ebb327ec8 100755
--- a/main/cron/lang/langstats_file_builder.php
+++ b/main/cron/lang/langstats_file_builder.php
@@ -24,7 +24,6 @@ $language_file = array(
 'group',
 'help',
 'hotspot',
-'index',
 'install',
 'learnpath',
 'registration',
diff --git a/main/dashboard/index.php b/main/dashboard/index.php
index dbd20ab5ec..60a570e227 100755
--- a/main/dashboard/index.php
+++ b/main/dashboard/index.php
@@ -6,7 +6,7 @@
 * @package chamilo.dashboard
 */
 // name of the language file that needs to be included
-$language_file = array('index', 'tracking', 'userInfo', 'admin', 'gradebook');
+$language_file = array('tracking', 'userInfo', 'admin', 'gradebook');
 $cidReset = true;
 
 // including files
diff --git a/main/inc/email_editor.php b/main/inc/email_editor.php
index 702ec31664..afd6a03afa 100755
--- a/main/inc/email_editor.php
+++ b/main/inc/email_editor.php
@@ -13,7 +13,7 @@
 
 use \ChamiloSession as Session;
 
-$language_file = array('index', 'admin', 'registration');
+$language_file = array('admin', 'registration');
 
 require_once '../inc/global.inc.php';
 
diff --git a/main/metadata/update_indexabletext.php b/main/metadata/update_indexabletext.php
index 4a9ca5a4ef..0a90243757 100755
--- a/main/metadata/update_indexabletext.php
+++ b/main/metadata/update_indexabletext.php
@@ -17,8 +17,6 @@ define('TPLEN', strlen(EID_TYPE) + 1);
 
 require('md_' . strtolower(EID_TYPE) . '.php');
 
-// name of the language file that needs to be included
-$language_file = 'md_' . strtolower(EID_TYPE);
 include('../inc/global.inc.php');
 $this_section=SECTION_COURSES;
 
diff --git a/main/mySpace/access_details.php b/main/mySpace/access_details.php
index ba9f95b96c..fcbc432b14 100755
--- a/main/mySpace/access_details.php
+++ b/main/mySpace/access_details.php
@@ -16,7 +16,7 @@
  * Code
  */
 // name of the language file that needs to be included
-$language_file = array ('registration', 'index', 'tracking');
+$language_file = array ('registration', 'tracking');
 
 require_once '../inc/global.inc.php';
 
diff --git a/main/mySpace/admin.php b/main/mySpace/admin.php
index 6cde089b74..fdba320e9c 100755
--- a/main/mySpace/admin.php
+++ b/main/mySpace/admin.php
@@ -10,7 +10,7 @@
 ob_start();
 
 // name of the language file that needs to be included
-$language_file = array('registration', 'index', 'trad4all', 'tracking');
+$language_file = array('registration', 'trad4all', 'tracking');
 $cidReset = true;
 
 require_once '../inc/global.inc.php';
diff --git a/main/mySpace/admin_view.php b/main/mySpace/admin_view.php
index 455e5812b0..4fb1bc1b7f 100644
--- a/main/mySpace/admin_view.php
+++ b/main/mySpace/admin_view.php
@@ -1,7 +1,7 @@
 <?php
 /* For licensing terms, see /license.txt */
 
-$language_file = array('registration', 'index', 'tracking', 'admin', 'exercice');
+$language_file = array('registration', 'tracking', 'admin', 'exercice');
 
 $cidReset = true;
 
diff --git a/main/mySpace/coaches.php b/main/mySpace/coaches.php
index 31a66eb183..2633214eff 100755
--- a/main/mySpace/coaches.php
+++ b/main/mySpace/coaches.php
@@ -10,7 +10,7 @@
 ob_start();
 
 // name of the language file that needs to be included
-$language_file = array ('registration', 'index', 'tracking', 'admin');
+$language_file = array ('registration', 'tracking', 'admin');
 $cidReset = true;
 
 require_once '../inc/global.inc.php';
diff --git a/main/mySpace/course.php b/main/mySpace/course.php
index 7e2ac178fb..b0649e9ccf 100755
--- a/main/mySpace/course.php
+++ b/main/mySpace/course.php
@@ -10,7 +10,7 @@
 ob_start();
 $nameTools = 'Cours';
 // name of the language file that needs to be included
-$language_file = array('admin', 'registration', 'index', 'tracking');
+$language_file = array('admin', 'registration', 'tracking');
 $cidReset = true;
 
 require_once '../inc/global.inc.php';
diff --git a/main/mySpace/current_courses.php b/main/mySpace/current_courses.php
index 5647365d65..1668fb1e5f 100755
--- a/main/mySpace/current_courses.php
+++ b/main/mySpace/current_courses.php
@@ -7,7 +7,7 @@
 /**
  * Code
  */
-$language_file = array ('registration', 'index', 'tracking', 'exercice','admin');
+$language_file = array ('registration', 'tracking', 'exercice','admin');
 $cidReset = true;
 require_once '../inc/global.inc.php';
 $this_section = SECTION_TRACKING;
diff --git a/main/mySpace/index.php b/main/mySpace/index.php
index 48b31f92f4..396bc803bf 100755
--- a/main/mySpace/index.php
+++ b/main/mySpace/index.php
@@ -6,7 +6,7 @@
  * @package chamilo.reporting
  */
 
-$language_file = array('registration', 'index', 'tracking', 'admin', 'exercice', 'gradebook');
+$language_file = array('registration', 'tracking', 'admin', 'exercice', 'gradebook');
 
 // resetting the course id
 $cidReset = true;
diff --git a/main/mySpace/progression.php b/main/mySpace/progression.php
index 50e0cdfa94..a595e5aeda 100755
--- a/main/mySpace/progression.php
+++ b/main/mySpace/progression.php
@@ -10,7 +10,7 @@
  */
 // TODO: This file seems to be unfinished and unused.
 
-$language_file = array ('registration', 'index', 'tracking');
+$language_file = array ('registration', 'tracking');
 
 require_once '../inc/global.inc.php';
 
diff --git a/main/mySpace/reussite.php b/main/mySpace/reussite.php
index ad6622c9e4..27726dcf8a 100755
--- a/main/mySpace/reussite.php
+++ b/main/mySpace/reussite.php
@@ -11,7 +11,7 @@
 
 $nameTools = 'Reussite';
 // name of the language file that needs to be included
-$language_file = array ('registration', 'index', 'trad4all', 'tracking');
+$language_file = array ('registration', 'trad4all', 'tracking');
 $cidReset = true;
 
 require '../inc/global.inc.php';
diff --git a/main/mySpace/session.php b/main/mySpace/session.php
index 61f14de7b2..47492500e5 100755
--- a/main/mySpace/session.php
+++ b/main/mySpace/session.php
@@ -6,7 +6,7 @@
  */
 ob_start();
 // name of the language file that needs to be included
-$language_file = array('registration', 'index', 'trad4all', 'tracking', 'admin');
+$language_file = array('registration', 'trad4all', 'tracking', 'admin');
 $cidReset = true;
 require_once '../inc/global.inc.php';
 require_once api_get_path(LIBRARY_PATH).'export.lib.inc.php';
diff --git a/main/mySpace/student.php b/main/mySpace/student.php
index 3c77c864d5..afc66c1648 100755
--- a/main/mySpace/student.php
+++ b/main/mySpace/student.php
@@ -6,7 +6,7 @@
  */
 
  // name of the language file that needs to be included
-$language_file = array ('registration', 'index', 'tracking', 'admin');
+$language_file = array ('registration', 'tracking', 'admin');
 $cidReset = true;
 
 require_once '../inc/global.inc.php';
diff --git a/main/mySpace/teachers.php b/main/mySpace/teachers.php
index 071fea033b..03ba1dcc53 100755
--- a/main/mySpace/teachers.php
+++ b/main/mySpace/teachers.php
@@ -8,7 +8,7 @@
  * Code
  */
 // name of the language file that needs to be included
-$language_file = array ('registration', 'index', 'tracking', 'admin');
+$language_file = array ('registration', 'tracking', 'admin');
 $cidReset = true;
 
 require_once '../inc/global.inc.php';
diff --git a/main/mySpace/user_import.php b/main/mySpace/user_import.php
index cb8bebf6f5..f19f510604 100755
--- a/main/mySpace/user_import.php
+++ b/main/mySpace/user_import.php
@@ -9,7 +9,7 @@
 /**
  * Main script
  */
-$language_file = array ('admin', 'registration', 'index', 'trad4all', 'tracking');
+$language_file = array ('admin', 'registration', 'trad4all', 'tracking');
 
 $cidReset = true;
 require_once '../inc/global.inc.php';
diff --git a/main/mySpace/users.php b/main/mySpace/users.php
index 339df52474..e5737a3504 100755
--- a/main/mySpace/users.php
+++ b/main/mySpace/users.php
@@ -8,7 +8,7 @@
  * Code
  */
  // name of the language file that needs to be included
-$language_file = array ('registration', 'index', 'tracking', 'admin');
+$language_file = array ('registration', 'tracking', 'admin');
 $cidReset = true;
 
 require_once '../inc/global.inc.php';
diff --git a/main/session/index.php b/main/session/index.php
index 1116e84059..1e0660344a 100755
--- a/main/session/index.php
+++ b/main/session/index.php
@@ -12,7 +12,7 @@
 use \ChamiloSession as Session;
 
 // Language files that should be included.
-$language_file = array('learnpath', 'index', 'tracking', 'exercice', 'admin');
+$language_file = array('learnpath', 'tracking', 'exercice', 'admin');
 $cidReset = true;
 
 require_once '../inc/global.inc.php';
diff --git a/main/social/profile.php b/main/social/profile.php
index ace420b1a1..a9b05eb3e5 100755
--- a/main/social/profile.php
+++ b/main/social/profile.php
@@ -7,7 +7,7 @@
 * @package chamilo.social
 */
 
-$language_file = array('userInfo', 'index');
+$language_file = array('userInfo');
 $cidReset = true;
 require_once '../inc/global.inc.php';
 // Include OpenGraph NOT AVAILABLE
diff --git a/main/tracking/exams.php b/main/tracking/exams.php
index 705f27a4ee..8db8131e18 100755
--- a/main/tracking/exams.php
+++ b/main/tracking/exams.php
@@ -8,7 +8,7 @@
  * Code
  */
 
-$language_file = array('registration', 'index', 'tracking', 'exercice','survey');
+$language_file = array('registration', 'tracking', 'exercice','survey');
 require_once '../inc/global.inc.php';
 require_once api_get_path(LIBRARY_PATH).'pear/Spreadsheet_Excel_Writer/Writer.php';
 
diff --git a/main/tracking/lp_results_by_user.php b/main/tracking/lp_results_by_user.php
index 37e5b5e65b..8c8ca40f42 100755
--- a/main/tracking/lp_results_by_user.php
+++ b/main/tracking/lp_results_by_user.php
@@ -11,7 +11,7 @@
  * Code
  */
 
-$language_file = array ('registration', 'index', 'tracking', 'exercice','survey');
+$language_file = array ('registration', 'tracking', 'exercice','survey');
 
 require_once '../inc/global.inc.php';
 require_once api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php';
diff --git a/main/tracking/question_course_report.php b/main/tracking/question_course_report.php
index b2478b1ec0..267f526cc3 100755
--- a/main/tracking/question_course_report.php
+++ b/main/tracking/question_course_report.php
@@ -6,7 +6,7 @@
  * @package chamilo.tracking
  */
 
-$language_file = array('registration', 'index', 'tracking', 'exercice','survey');
+$language_file = array('registration', 'tracking', 'exercice','survey');
 $cidReset = true;
 require_once '../inc/global.inc.php';
 
diff --git a/news_list.php b/news_list.php
index 2d34f5e886..1853167c20 100755
--- a/news_list.php
+++ b/news_list.php
@@ -2,7 +2,7 @@
 /* For licensing terms, see /license.txt */
 
 // name of the language file that needs to be included
-$language_file = array ('admin', 'index', 'group');
+$language_file = array ('admin', 'group');
 
 // including necessary files
 require_once 'main/inc/global.inc.php';
diff --git a/plugin/ticket/src/download.php b/plugin/ticket/src/download.php
index 17518a88f0..092e511062 100755
--- a/plugin/ticket/src/download.php
+++ b/plugin/ticket/src/download.php
@@ -9,7 +9,7 @@ require_once '../config.php';
 $plugin = TicketPlugin::create();
 
 api_block_anonymous_users();
-$language_file = array('index', 'admin');
+$language_file = array('admin');
 $user_id = api_get_user_id();
 if (!isset($_GET['file']) || !isset($_GET['title']) || !isset($_GET['ticket_id'])) {
     api_not_allowed();
diff --git a/user.php b/user.php
index 66d3ef6435..eca568f332 100755
--- a/user.php
+++ b/user.php
@@ -16,7 +16,7 @@
  * Variables definitions and inclusions
  */
 // name of the language file that needs to be included
-$language_file = array('index', 'registration', 'userInfo');
+$language_file = array('registration', 'userInfo');
 
 $cidReset = true;
 require_once 'main/inc/global.inc.php';
diff --git a/user_portal.php b/user_portal.php
index 6bdd0b1008..b0519de6f3 100755
--- a/user_portal.php
+++ b/user_portal.php
@@ -16,7 +16,7 @@
  */
 
 use \ChamiloSession as Session;
-$language_file = array('index', 'admin', 'userInfo');
+$language_file = array('admin', 'userInfo');
 /* Flag forcing the 'current course' reset, as we're not inside a course anymore */
 $cidReset = true;
 
diff --git a/webchatdeny.php b/webchatdeny.php
index 4dec944759..97cd8907d9 100755
--- a/webchatdeny.php
+++ b/webchatdeny.php
@@ -9,9 +9,6 @@
 * Deletes the web-chat request form the user table
 */
 
-// name of the language file that needs to be included
-$language_file = 'index';
-
 // including necessary files
 include_once './main/inc/global.inc.php';
 
diff --git a/whoisonline.php b/whoisonline.php
index e6c54b1b39..6c6bf318bb 100755
--- a/whoisonline.php
+++ b/whoisonline.php
@@ -6,7 +6,7 @@
 */
 
 // language files that should be included
-$language_file = array('index', 'registration', 'userInfo');
+$language_file = array('registration', 'userInfo');
 
 if (!isset($_GET['cidReq'])) {
 	$cidReset = true;
diff --git a/whoisonlinesession.php b/whoisonlinesession.php
index 796cc4fed8..cb86e9fb54 100755
--- a/whoisonlinesession.php
+++ b/whoisonlinesession.php
@@ -8,7 +8,7 @@
  * Initialization
  */
 // name of the language file that needs to be included
-$language_file = array ('index', 'tracking');
+$language_file = array ('tracking');
 
 include_once './main/inc/global.inc.php';
 api_block_anonymous_users();