diff --git a/lib/i18n/i18nutil.inc.php b/lib/i18n/i18nutil.inc.php
index d0fc2c5..3068f2d 100644
--- a/lib/i18n/i18nutil.inc.php
+++ b/lib/i18n/i18nutil.inc.php
@@ -59,8 +59,8 @@ class KTi18nUtil {
     }
 }
 
-function _kt($sContents) {
+function _kt($sContents, $sDomain = 'knowledgeTree') {
     $oReg =& KTi18nRegistry::getSingleton();
-    $oi18n =& $oReg->geti18n('knowledgeTree');
+    $oi18n =& $oReg->geti18n($sDomain);
     return $oi18n->gettext($sContents);
 }