diff --git a/htdocs/langs/en_US/languages.lang b/htdocs/langs/en_US/languages.lang
index cbc94b4481c..598eec1fdca 100644
--- a/htdocs/langs/en_US/languages.lang
+++ b/htdocs/langs/en_US/languages.lang
@@ -3,6 +3,7 @@ Language_am_ET=Ethiopian
 Language_ar_AR=Arabic
 Language_ar_EG=Arabic (Egypt)
 Language_ar_SA=Arabic
+Language_ar_TN=Arabic (Tunisia)
 Language_az_AZ=Azerbaijani
 Language_bn_BD=Bengali
 Language_bn_IN=Bengali (India)