diff --git a/htdocs/install/upgrade2.php b/htdocs/install/upgrade2.php
index c653e43a9ba..d6b943cf79b 100644
--- a/htdocs/install/upgrade2.php
+++ b/htdocs/install/upgrade2.php
@@ -1146,7 +1146,9 @@ function migrate_paiementfourn_facturefourn($db,$langs,$conf)
  */
 function migrate_price_facture($db,$langs,$conf)
 {
-	$db->begin();
+	$err=0;
+
+    $db->begin();
 
 	print '<tr><td colspan="4">';