diff --git a/lang/en/moodle.php b/lang/en/moodle.php
index 546415e264a..af5287dc882 100644
--- a/lang/en/moodle.php
+++ b/lang/en/moodle.php
@@ -48,6 +48,7 @@ $string['backup'] = "Backup";
 $string['backupdir'] = "backupdata";
 $string['backupdate'] = "Backup Date";
 $string['backupdetails'] = "Backup Details";
+$string['backupfilename'] = "backup";
 $string['backupnameformat'] = "%%Y%%m%%d-%%H%%M";
 $string['backuporiginalname'] = "Backup Name";
 $string['backupversion'] = "Backup Version";
diff --git a/lang/es_es/moodle.php b/lang/es_es/moodle.php
index 272006479a4..0b59477aeeb 100644
--- a/lang/es_es/moodle.php
+++ b/lang/es_es/moodle.php
@@ -48,6 +48,7 @@ $string['backup'] = "Copia de respaldo";
 $string['backupdir'] = "backupdata";
 $string['backupdate'] = "Fecha de la copia de respaldo";
 $string['backupdetails'] = "Detalles de la copia de respaldo";
+$string['backupfilename'] = "backup";
 $string['backupnameformat'] = "%%Y%%m%%d-%%H%%M";
 $string['backuporiginalname'] = "Nombre de la copia de respaldo";
 $string['backupversion'] = "Versión de la copia de respaldo";