diff --git a/htdocs/langs/en_US/agenda.lang b/htdocs/langs/en_US/agenda.lang
index 95fadf00b68..c468db30ca3 100644
--- a/htdocs/langs/en_US/agenda.lang
+++ b/htdocs/langs/en_US/agenda.lang
@@ -84,6 +84,10 @@ InvoiceDeleted=Invoice deleted
 PRODUCT_CREATEInDolibarr=Product %s created
 PRODUCT_MODIFYInDolibarr=Product %s modified
 PRODUCT_DELETEInDolibarr=Product %s deleted
+HOLIDAY_CREATEInDolibarr=Request for leave %s created
+HOLIDAY_MODIFYInDolibarr=Request for leave %s modified
+HOLIDAY_VALIDATEDInDolibarr=Request for leave %s validated
+HOLIDAY_DELETEInDolibarr=Request for leave %s deleted
 EXPENSE_REPORT_CREATEInDolibarr=Expense report %s created
 EXPENSE_REPORT_VALIDATEInDolibarr=Expense report %s validated
 EXPENSE_REPORT_APPROVEInDolibarr=Expense report %s approved