diff --git a/web/lang/en_gb.php b/web/lang/en_gb.php
index 56e6d56b6..d6394b94e 100644
--- a/web/lang/en_gb.php
+++ b/web/lang/en_gb.php
@@ -367,6 +367,7 @@ $SLANG = array(
     'Ffmpeg'                => 'Ffmpeg',
     'File'                  => 'File',
     'FilterArchiveEvents'   => 'Archive all matches',
+    'FilterUnarchiveEvents' => 'Unarchive all matches',
     'FilterUpdateDiskSpace' => 'Update used disk space',
     'FilterDeleteEvents'    => 'Delete all matches',
     'FilterCopyEvents'      => 'Copy all matches',