diff --git a/htdocs/compta/facture/class/facture-rec.class.php b/htdocs/compta/facture/class/facture-rec.class.php
index 7cfe15b64e6..e8c965f5937 100644
--- a/htdocs/compta/facture/class/facture-rec.class.php
+++ b/htdocs/compta/facture/class/facture-rec.class.php
@@ -1274,6 +1274,8 @@ class FactureRec extends CommonInvoice
 		$tmparray = dol_getdate($now);
 		$today = dol_mktime(23, 59, 59, $tmparray['mon'], $tmparray['mday'], $tmparray['year']); // Today is last second of current day
 
+		$this->output = null;
+
 		dol_syslog("createRecurringInvoices restrictioninvoiceid=".$restrictioninvoiceid." forcevalidation=".$forcevalidation);
 
 		$sql = 'SELECT rowid FROM '.MAIN_DB_PREFIX.'facture_rec';