diff --git a/scripts/locales/en.lua b/scripts/locales/en.lua
index e5740d0b13..05ac2ada4b 100644
--- a/scripts/locales/en.lua
+++ b/scripts/locales/en.lua
@@ -50,6 +50,7 @@ local lang = {
   ["end"] = "End",
   ["enterpriseOnly"] = "This feature is only available in the ntopng Enterprise edition",
   ["error"] = "Error",
+  ["error_not_granted"] = "Request not granted",
   ["error_no_search_results"] = "No results found. Please modify your search criteria.",
   ["error_rrd_cannot_complete_dump"] = "Cannot complete local hosts RRD dump. Disk slow or too many local hosts?",
   ["error_rrd_low_resolution"] = "You are asking to fetch data at lower resolution than the one available on RRD, which will lead to invalid data.<br>If you still want data with such granularity, please tune <a href=\"%{prefs}\">Protocol/Networks Timeseries</a> preferences",