diff --git a/htdocs/compta/facture/class/facture.class.php b/htdocs/compta/facture/class/facture.class.php
index 1fc977ce807..5c645783cc1 100644
--- a/htdocs/compta/facture/class/facture.class.php
+++ b/htdocs/compta/facture/class/facture.class.php
@@ -1691,8 +1691,8 @@ class Facture extends CommonInvoice
 			return 0;
 		}
 
-		if ((empty($conf->global->MAIN_USE_ADVANCED_PERMS) && ! empty($user->rights->facture->creer))
-       	|| (! empty($conf->global->MAIN_USE_ADVANCED_PERMS) && ! empty($user->rights->facture->invoice_advance->validate)))
+		if ((empty($conf->global->MAIN_USE_ADVANCED_PERMS) && empty($user->rights->facture->creer))
+       	|| (! empty($conf->global->MAIN_USE_ADVANCED_PERMS) && empty($user->rights->facture->invoice_advance->validate)))
 		{
 			$this->error='Permission denied';
 			dol_syslog(get_class($this)."::validate ".$this->error, LOG_ERR);