diff --git a/core/attributedef.class.inc.php b/core/attributedef.class.inc.php
index bf77caa21..4da079129 100644
--- a/core/attributedef.class.inc.php
+++ b/core/attributedef.class.inc.php
@@ -9925,7 +9925,7 @@ class AttributeTagSet extends AttributeSet
 			{
 				$aValues = $value->GetValues();
 			}
-			if (!empty($aValuess))
+			if (!empty($aValues))
 			{
 				$sRes .= '<Tag>'.implode('</Tag><Tag>', $aValues).'</Tag>';
 			}