diff --git a/docs/administration.rst b/docs/administration.rst
index 6f017db11..f517ccfa9 100644
--- a/docs/administration.rst
+++ b/docs/administration.rst
@@ -238,7 +238,9 @@ Document exporter
 =================
 
 The document exporter exports all your data from paperless into a folder for
-backup or migration to another DMS.
+backup or migration to another DMS. 
+
+If you use the document exporter within a cronjob to backup your data you might use the ``-T`` flag behind exec to suppress "The input device is not a TTY" errors. For example: ``docker-compose exec -T webserver document_exporter ../export``
 
 .. code::