diff --git a/bundles/zfs/metadata.py b/bundles/zfs/metadata.py
index a270d5f..01ed900 100644
--- a/bundles/zfs/metadata.py
+++ b/bundles/zfs/metadata.py
@@ -170,7 +170,7 @@ def scrub_timer(metadata):
         'systemd-timers': {
             'timers': {
                 'zfs-scrub': {
-                    'when': 'Sun 02:00:00 UTC',
+                    'when': metadata.get('zfs/scrub_when', 'Sun 02:00:00 UTC'),
                     'command': scrubs,
                 },
             },