diff --git a/lib/moodlelib.php b/lib/moodlelib.php
index 73e606b8c99..b09ed1f3920 100644
--- a/lib/moodlelib.php
+++ b/lib/moodlelib.php
@@ -4696,9 +4696,11 @@ function get_list_of_languages() {
             return false;
         }
         foreach ($langdirs as $lang) {
-            @include($CFG->dirroot .'/lang/'. $lang .'/moodle.php');
-            $languages[$lang] = $string['thislanguage'] .' ('. $lang .')';
-            unset($string);
+            if (file_exists($CFG->dirroot .'/lang/'. $lang .'/moodle.php')) {
+                include($CFG->dirroot .'/lang/'. $lang .'/moodle.php');
+                $languages[$lang] = $string['thislanguage'] .' ('. $lang .')';
+                unset($string);
+            }
         }
     }
     if ( defined('FULLME') && FULLME === 'cron' && !empty($CFG->langcache)) {