--- a/mail/messenger/aboutSupportCalendar.ftl
+++ b/mail/messenger/aboutSupportCalendar.ftl
@@ -18,10 +18,11 @@ calendars-table-imip-identity = Identita
 calendars-table-imip-identity-disabled = iMIP disactivate
 calendars-table-imip-identity-account = Conto iMIP
 calendars-table-organizerid = Id de organisator
 calendars-table-forceemailscheduling = Fortiar le planification del messages
 calendars-table-capabilities-alarms-popup-supported = Avisos contextual supportate
 calendars-table-capabilities-alarms-oninviations-supported = Avisos sur invitation supportate
 calendars-table-capabilities-alarms-maxcount = Numero maxime de avisos per evento
 calendars-table-capabilities-attachments-supported = Annexo supportate
+calendars-table-capabilities-categories-maxcount = Num. maxime de categorias
 calendars-table-capabilities-priority-supported = Prioritate supportate
 calendars-table-capabilities-events-supported = Evento supportate