diff --git a/synchro/synchro_import.php b/synchro/synchro_import.php
index b4c0c74284..b238a8db7d 100644
--- a/synchro/synchro_import.php
+++ b/synchro/synchro_import.php
@@ -468,7 +468,7 @@ try
 	   // Prepare insert columns
 		$sInsertColumns = '`'.implode('`, `', $aInputColumns).'`';
 	
-		$oMutex = new iTopMutex('synchro_import_'.$oDataSource->GetKey().'_'.$oConfig->GetDBName().'_'.$oConfig->GetDBSubname());
+		$oMutex = new iTopMutex('synchro_import_'.$oDataSource->GetKey().'_'.MetaModel::GetConfig()->GetDBName().'_'.MetaModel::GetConfig()->GetDBSubname());
 		$oMutex->Lock();
 		foreach($aData as $iRow => $aRow)
 	  	{
diff --git a/synchro/synchrodatasource.class.inc.php b/synchro/synchrodatasource.class.inc.php
index c2fabe6287..7f1e67255d 100644
--- a/synchro/synchrodatasource.class.inc.php
+++ b/synchro/synchrodatasource.class.inc.php
@@ -2415,7 +2415,7 @@ class SynchroExecution
 
 		self::$m_oCurrentTask = $this->m_oDataSource;
 
-		$oMutex = new iTopMutex('synchro_process_'.$this->m_oDataSource->GetKey().'_'.$oConfig->GetDBName().'_'.$oConfig->GetDBSubname());
+		$oMutex = new iTopMutex('synchro_process_'.$this->m_oDataSource->GetKey().'_'.MetaModel::GetConfig()->GetDBName().'_'.MetaModel::GetConfig()->GetDBSubname());
 		try
 		{
 			$oMutex->Lock();