diff --git a/htdocs/admin/supplier_invoice.php b/htdocs/admin/supplier_invoice.php
index 66d8fe1002c..7a0e465577b 100644
--- a/htdocs/admin/supplier_invoice.php
+++ b/htdocs/admin/supplier_invoice.php
@@ -55,7 +55,7 @@ $specimenthirdparty->initAsSpecimen();
 if ($action == 'updateMask')
 {
     $maskconstinvoice=GETPOST('maskconstinvoice','alpha');
-    $maskvalue=GETPOST('maskvalue','alpha');
+    $maskvalue=GETPOST('maskinvoice','alpha');
 
     if ($maskconstinvoice)  $res = dolibarr_set_const($db,$maskconstinvoice,$maskvalue,'chaine',0,'',$conf->entity);
 
diff --git a/htdocs/core/modules/supplier_invoice/mod_facture_fournisseur_tulip.php b/htdocs/core/modules/supplier_invoice/mod_facture_fournisseur_tulip.php
index db600493478..fc47fbdae3b 100644
--- a/htdocs/core/modules/supplier_invoice/mod_facture_fournisseur_tulip.php
+++ b/htdocs/core/modules/supplier_invoice/mod_facture_fournisseur_tulip.php
@@ -124,7 +124,7 @@ class mod_facture_fournisseur_tulip extends ModeleNumRefSuppliersInvoices
 			return 0;
 		}
 
-		$numFinal=get_next_value($db,$mask,'facture_fournisseur','ref','',$objsoc->code_fournisseur,$object->datec);
+		$numFinal=get_next_value($db,$mask,'facture_fourn','ref','',$objsoc->code_fournisseur,$object->datec);
 
 		return  $numFinal;
 	}