diff --git a/core/lib/Thelia/Model/Lang.php b/core/lib/Thelia/Model/Lang.php
index d6b1a204c..3c45ade33 100755
--- a/core/lib/Thelia/Model/Lang.php
+++ b/core/lib/Thelia/Model/Lang.php
@@ -9,17 +9,14 @@ class Lang extends BaseLang {
     /**
      * Return the default language object, using a local variable to cache it.
      *
-     * @throws RuntimeException
+     * @throws \RuntimeException
      */
-    private static $default_lang = null;
-
     public static function getDefaultLanguage() {
 
-        if (self::$default_lang == null) {
-            $default_lang = LangQuery::create()->findOneByByDefault(true);
 
-            if ($default_lang == null) throw new RuntimeException("No default language is defined. Please define one.");
-        }
+        $default_lang = LangQuery::create()->findOneByByDefault(1);
+
+        if ($default_lang == null) throw new \RuntimeException("No default language is defined. Please define one.");
 
         return $default_lang;
     }