diff --git a/doc/DISCLAIMER.md b/doc/DISCLAIMER.md
index 841b1cd..7dc9728 100644
--- a/doc/DISCLAIMER.md
+++ b/doc/DISCLAIMER.md
@@ -7,3 +7,5 @@ Your video files are stored by default in `/home/yunohost.app/tube/videos`.
 You can configure options in this file `/var/www/tube/config.json` using the [documentation](https://git.mills.io/prologic/tube#configuration). Remember to restart Tube service if you change your configuration file.
 
 RSS feed address is available at `https://your_domain.tld/feed.xml`
+
+The data directory with uploaded videos is untouched when upgrading the app. If you want to delete the data directory with the application, use the `--purge` option: `sudo yunohost app remove tube --purge`
\ No newline at end of file