diff --git a/datamodels/2.x/itop-attachments/module.itop-attachments.php b/datamodels/2.x/itop-attachments/module.itop-attachments.php
index cebd8da03..f8ae08ba1 100644
--- a/datamodels/2.x/itop-attachments/module.itop-attachments.php
+++ b/datamodels/2.x/itop-attachments/module.itop-attachments.php
@@ -179,7 +179,7 @@ SQL;
 			$iUpdated = 0;
 			while ($oAttachment = $oSet->Fetch())
 			{
-				if ($oAttachment->Get('item_id') == 0) {
+				if (empty($oAttachment->Get('item_class'))) {
 					//do not treat orphan attachment
 					continue;
 				}