diff --git a/core/expression.class.inc.php b/core/expression.class.inc.php
index 4d1b1fb7f..b9516f678 100644
--- a/core/expression.class.inc.php
+++ b/core/expression.class.inc.php
@@ -1181,6 +1181,16 @@ class CharConcatWSExpression extends CharConcatExpression
 		$sSep = CMDBSource::Quote($this->m_separator);
 		return "CAST(CONCAT_WS($sSep, ".implode(', ', $aRes).") AS CHAR)";
 	}
+
+	public function Translate($aTranslationData, $bMatchAll = true, $bMarkFieldsAsResolved = true)
+	{
+		$aRes = array();
+		foreach ($this->m_aExpressions as $oExpr)
+		{
+			$aRes[] = $oExpr->Translate($aTranslationData, $bMatchAll, $bMarkFieldsAsResolved);
+		}
+		return new CharConcatWSExpression($this->m_separator, $aRes);
+	}
 }