diff --git a/setup/modelfactory.class.inc.php b/setup/modelfactory.class.inc.php
index f515efc10..9640c5910 100644
--- a/setup/modelfactory.class.inc.php
+++ b/setup/modelfactory.class.inc.php
@@ -2249,13 +2249,13 @@ EOF;
 		if (!$oExisting)
 		{
 			$sPath = MFDocument::GetItopNodePath($this)."/".$oNode->tagName.(empty($sSearchId) ? '' : "[$sSearchId]");
-			throw new MFException('could not be modified (not found)', MFException::COULD_NOT_BE_MODIFIED_NOT_FOUND, $oNode, $sPath, $oParentFallbackNode);
+			throw new MFException('could not be modified (not found)', MFException::COULD_NOT_BE_MODIFIED_NOT_FOUND, $oNode, $sPath, '', $oParentFallbackNode);
 		}
 		$sPrevFlag = $oExisting->GetAlteration();
 		$sOldId = $oExisting->getAttribute('_old_id');
 		if ($oExisting->IsRemoved()) {
 			$sPath = MFDocument::GetItopNodePath($this)."/".$oNode->tagName.(empty($sSearchId) ? '' : "[$sSearchId]");
-			throw new MFException('could not be modified (marked as deleted)', MFException::COULD_NOT_BE_MODIFIED_ALREADY_DELETED, $oNode, $sPath, $oParentFallbackNode);
+			throw new MFException('could not be modified (marked as deleted)', MFException::COULD_NOT_BE_MODIFIED_ALREADY_DELETED, $oNode, $sPath, '', $oParentFallbackNode);
 		}
 		$oExisting->ReplaceWithSingleNode($oNode);
 		if (!$this->IsInDefinition()) {