diff --git a/main/install/update-files-1.10.0-1.11.0.inc.php b/main/install/update-files-1.10.0-1.11.0.inc.php
index cac101f4b0..2c82ea7b86 100644
--- a/main/install/update-files-1.10.0-1.11.0.inc.php
+++ b/main/install/update-files-1.10.0-1.11.0.inc.php
@@ -46,10 +46,10 @@ if (defined('SYSTEM_INSTALLATION')) {
 
     // Some entities have been removed in 1.11. Delete the corresponding files
     $entitiesToRemove = [
-        api_get_path(SYS_PATH).'src/CoreBundle/Entity/Groups.php',
-        api_get_path(SYS_PATH).'src/CoreBundle/Entity/GroupRelGroup.php',
-        api_get_path(SYS_PATH).'src/CoreBundle/Entity/GroupRelTag.php',
-        api_get_path(SYS_PATH).'src/CoreBundle/Entity/GroupRelUser.php'
+        api_get_path(SYS_PATH).'src/Chamilo/CoreBundle/Entity/Groups.php',
+        api_get_path(SYS_PATH).'src/Chamilo/CoreBundle/Entity/GroupRelGroup.php',
+        api_get_path(SYS_PATH).'src/Chamilo/CoreBundle/Entity/GroupRelTag.php',
+        api_get_path(SYS_PATH).'src/Chamilo/CoreBundle/Entity/GroupRelUser.php'
     ];
     foreach ($entitiesToRemove as $entity) {
         if (file_exists($entity)) {
diff --git a/src/Chamilo/CoreBundle/Component/Utils/ChamiloApi.php b/src/Chamilo/CoreBundle/Component/Utils/ChamiloApi.php
index 8b27f39269..22f958c7d4 100644
--- a/src/Chamilo/CoreBundle/Component/Utils/ChamiloApi.php
+++ b/src/Chamilo/CoreBundle/Component/Utils/ChamiloApi.php
@@ -226,7 +226,7 @@ class ChamiloApi
     public static function getLanguageVar($text, $prefix = '')
     {
         $text = api_replace_dangerous_char($text);
-        $text = str_replace(['-', ' '], '_', $text);
+        $text = str_replace(['-', ' ', '.'], '_', $text);
         $text = preg_replace('/\_{1,}/', '_', $text);
         //$text = str_replace('_', '', $text);
         $text = api_underscore_to_camel_case($text);