diff --git a/htdocs/langs/en_US/commercial.lang b/htdocs/langs/en_US/commercial.lang
index d156ca3fd72..c7eb1c5b510 100644
--- a/htdocs/langs/en_US/commercial.lang
+++ b/htdocs/langs/en_US/commercial.lang
@@ -3,4 +3,12 @@ Commercial=Commercial
 Customer=Customer
 Customers=Customers
 Prospect=Prospect
-Prospects=Prospects
\ No newline at end of file
+Prospects=Prospects
+DeleteAction=Delete a task
+AddAction=Add a task
+AddActionRendezVous=Add a Rendez-Vous task
+ConfirmDeleteAction=Are you sure you want to delete this task ?
+CardAction=Task card
+PercentDone=Percentage done
+ActionOnCompany=Task about company
+ActionOnContact=Task about contact