diff --git a/htdocs/langs/en_US/agenda.lang b/htdocs/langs/en_US/agenda.lang
index 97523809dc3..fc5252af962 100644
--- a/htdocs/langs/en_US/agenda.lang
+++ b/htdocs/langs/en_US/agenda.lang
@@ -66,7 +66,7 @@ ExtSites=External calendars
 
 # External Sites ical
 ExtSites=External Calendars
-ExtSitesEnableThisTool=how external calendars into agenda
+ExtSitesEnableThisTool=Show external calendars into agenda
 ExtSitesNbOfAgenda=Number of calendars
 AgendaExtNb=Calendar nb %s
 ExtSiteUrlAgenda=URL to access .ical file