diff --git a/inc/config.php b/inc/config.php
index 71b0fbf4..5fc38c8d 100644
--- a/inc/config.php
+++ b/inc/config.php
@@ -1298,6 +1298,7 @@
     $config['error']['pendingappeal']  = _('There is already a pending appeal for this ban.');
     $config['error']['invalidpassword'] = _('Wrong password…');
     $config['error']['invalidimg']      = _('Invalid image.');
+    $config['error']['invalidfile']      = _('Invalid file.');
     $config['error']['unknownext']      = _('Unknown file extension.');
     $config['error']['filesize']        = _('Maximum file size: %maxsz% bytes<br>Your file\'s size: %filesz% bytes');
     $config['error']['maxsize']     = _('The file was too big.');