diff --git a/test/phpunit/CommandeFournisseurTest.php b/test/phpunit/CommandeFournisseurTest.php
index 28fc9b8daac..b050005bcf1 100644
--- a/test/phpunit/CommandeFournisseurTest.php
+++ b/test/phpunit/CommandeFournisseurTest.php
@@ -183,7 +183,7 @@ class CommandeFournisseurTest extends PHPUnit\Framework\TestCase
 		print __METHOD__." result=".$result."\n";
 		$this->assertEquals(-1, $result, 'Creation of too low quantity');   // must be -1 because quantity is lower than minimum of supplier price
 
-		$sql="DELETE FROM ".MAIN_DB_PREFIX."commande_fournisseur where ref=''";
+		$sql="DELETE FROM ".MAIN_DB_PREFIX."commande_fournisseur where ref IN ('', '(PROV)')";
 		$db->query($sql);
 
 		// Create purchase order