diff --git a/htdocs/langs/en_US/ecm.lang b/htdocs/langs/en_US/ecm.lang
index 1c89de928ca..43ddd3bf36f 100644
--- a/htdocs/langs/en_US/ecm.lang
+++ b/htdocs/langs/en_US/ecm.lang
@@ -34,6 +34,8 @@ ECMDocsByProjects=Documents linked to projects
 ECMDocsByUsers=Documents linked to users
 ECMDocsByInterventions=Documents linked to interventions
 ECMDocsByExpenseReports=Documents linked to expense reports
+ECMDocsByHolidays=Documents linked to holidays
+ECMDocsBySupplierProposals=Documents linked to supplier proposals
 ECMNoDirectoryYet=No directory created
 ShowECMSection=Show directory
 DeleteSection=Remove directory