diff --git a/locales/en.json b/locales/en.json
index 8d76e2936..febcb51a9 100644
--- a/locales/en.json
+++ b/locales/en.json
@@ -324,6 +324,7 @@
     "global_settings_unknown_setting_from_settings_file": "Unknown key in settings: '{setting_key:s}', discard it and save it in /etc/yunohost/settings-unknown.json",
     "global_settings_setting_service_ssh_allow_deprecated_dsa_hostkey": "Allow the use of (deprecated) DSA hostkey for the SSH daemon configuration",
     "global_settings_setting_smtp_allow_ipv6": "Allow the use of IPv6 to receive and send mail",
+    "global_settings_setting_backup_compress_tar_archives": "When creating new backups, compress the archives (.tar.gz) instead of uncompressed archives (.tar). N.B. : enabling this option means create lighter backup archives, but the initial backup procedure will be significantly longer and heavy on CPU.",
     "global_settings_unknown_type": "Unexpected situation, the setting {setting:s} appears to have the type {unknown_type:s} but it is not a type supported by the system.",
     "good_practices_about_admin_password": "You are now about to define a new administration password. The password should be at least 8 characters long—though it is good practice to use a longer password (i.e. a passphrase) and/or to use a variation of characters (uppercase, lowercase, digits and special characters).",
     "good_practices_about_user_password": "You are now about to define a new user password. The password should be at least 8 characters long—though it is good practice to use a longer password (i.e. a passphrase) and/or to a variation of characters (uppercase, lowercase, digits and special characters).",