diff --git a/lang.inc.php b/lang.inc.php
index 6003979b..1541fec8 100644
--- a/lang.inc.php
+++ b/lang.inc.php
@@ -45,7 +45,7 @@ function translate_array(&$a,$b)
 {
 	foreach ($a as &$row)
 		foreach($b as $el)
-			$row[$el] = T_($row[$el]);
+			if (isset($row[$el])) $row[$el] = T_($row[$el]);
 }