diff --git a/Backup.md b/Backup.md
index 16845f7..7452bcd 100644
--- a/Backup.md
+++ b/Backup.md
@@ -2,6 +2,8 @@
 
 # Backup Docker
 
+[Also see: Synology with quay images](https://github.com/wekan/wekan/issues/3874#issuecomment-867526249)
+
 Note: Do not run `docker-compose down` without verifying your docker-compose file, it does not delete the data by default but caution is advised. Refer to https://docs.docker.com/compose/reference/down/.
 
 [docker-compose.yml](https://raw.githubusercontent.com/wekan/wekan/master/docker-compose.yml)