diff --git a/htdocs/langs/en_US/agenda.lang b/htdocs/langs/en_US/agenda.lang
index cd39a43abe8..95fadf00b68 100644
--- a/htdocs/langs/en_US/agenda.lang
+++ b/htdocs/langs/en_US/agenda.lang
@@ -92,6 +92,9 @@ EXPENSE_REPORT_REFUSEDInDolibarr=Expense report %s refused
 PROJECT_CREATEInDolibarr=Project %s created
 PROJECT_MODIFYInDolibarr=Project %s modified
 PROJECT_DELETEInDolibarr=Project %s deleted
+TICKET_CREATEInDolibarr=Ticket %s created
+TICKET_MODIFYInDolibarr=Ticket %s modified
+TICKET_DELETEInDolibarr=Ticket %s deleted
 ##### End agenda events #####
 AgendaModelModule=Document templates for event
 DateActionStart=Start date