diff --git a/htdocs/langs/en_US/bills.lang b/htdocs/langs/en_US/bills.lang
index 26fe61184b2..919ddeebf1b 100644
--- a/htdocs/langs/en_US/bills.lang
+++ b/htdocs/langs/en_US/bills.lang
@@ -110,3 +110,4 @@ SetMode=Set payment mode
 Billed=Billed
 RecurringBills=Recurring invoices
 ExportDataset_invoice_1=Customer invoices list and invoices' lines
+ProformaBill=Proforma Bill:
\ No newline at end of file
diff --git a/htdocs/langs/fr_FR/bills.lang b/htdocs/langs/fr_FR/bills.lang
index fae65ed2d65..91be2fd2ce3 100644
--- a/htdocs/langs/fr_FR/bills.lang
+++ b/htdocs/langs/fr_FR/bills.lang
@@ -109,4 +109,5 @@ SetConditions=D
 SetMode=Définir mode de réglement
 Billed=Facturé
 RecurringBills=Factures récurrentes
-ExportDataset_invoice_1=Factures clients et lignes de facture
\ No newline at end of file
+ExportDataset_invoice_1=Factures clients et lignes de facture
+ProformaBill=Facture Proforma :
\ No newline at end of file