diff --git a/test/php/library/Icinga/Util/TranslatorTest.php b/test/php/library/Icinga/Util/TranslatorTest.php
index 1c63e6c68..23bc154dd 100644
--- a/test/php/library/Icinga/Util/TranslatorTest.php
+++ b/test/php/library/Icinga/Util/TranslatorTest.php
@@ -27,7 +27,7 @@ class TranslatorTest extends BaseTestCase
     public function testWhetherGetAvailableLocaleCodesReturnsAllAvailableLocaleCodes()
     {
         $this->assertEquals(
-            array('de_DE', 'fr_FR'),
+            array(Translator::DEFAULT_LOCALE, 'de_DE', 'fr_FR'),
             Translator::getAvailableLocaleCodes(),
             'Translator::getAvailableLocaleCodes does not return all available locale codes'
         );