diff --git a/bundles/backup-server/metadata.py b/bundles/backup-server/metadata.py
index 2ec1a46..1bc7321 100644
--- a/bundles/backup-server/metadata.py
+++ b/bundles/backup-server/metadata.py
@@ -45,6 +45,7 @@ def zfs(metadata):
 
         zfs_datasets[dataset] = {
             'mountpoint': '/srv/backups/{}'.format(client),
+            'compression': 'on',
         }
 
         zfs_retains[dataset] = retain_defaults.copy()