diff --git a/include/limesurvey/config.php b/include/limesurvey/config.php
index c9cdf568..da292685 100644
--- a/include/limesurvey/config.php
+++ b/include/limesurvey/config.php
@@ -59,4 +59,6 @@ $siteadminemail     =   "your@email.org"; // The default email address of the si
 $siteadminbounce    =   "your@email.org"; // The default email address used for error notification of sent messages for the site administrator (Return-Path)
 $siteadminname      =   "Your Name";      // The name of the site administrator
 
+$defaultlang = DEFAULT_LOCALE;
+
 ?>