diff --git a/htdocs/langs/en_US/bills.lang b/htdocs/langs/en_US/bills.lang
index 01e57a756b9..af2f6174315 100644
--- a/htdocs/langs/en_US/bills.lang
+++ b/htdocs/langs/en_US/bills.lang
@@ -323,6 +323,7 @@ NextDateToExecution=Date for next invoice generation
 DateLastGeneration=Date of latest generation
 MaxPeriodNumber=Max nb of invoice generation
 NbOfGenerationDone=Nb of invoice generation already done
+MaxGenerationReached=Maximum nb of generations reached
 InvoiceAutoValidate=Validate invoices automatically
 GeneratedFromRecurringInvoice=Generated from template recurring invoice %s
 DateIsNotEnough=Date not reached yet