diff --git a/zfs-backup.py b/zfs-backup.py
index 28e019f..476090e 100755
--- a/zfs-backup.py
+++ b/zfs-backup.py
@@ -212,7 +212,7 @@ class ExternalPool(Pool):
 
     @classmethod
     def find_from_dict(cls, backup_pools: dict[str, UUID]) -> ExternalPool:
-        present_uuids = list(DISK_BY_UUID.iterdir())
+        present_uuids = [item.name for item in DISK_BY_UUID.iterdir()]
         for pool_name, disk_uuid in backup_pools.items():
             if str(disk_uuid) in present_uuids:
                 disk = Disk(disk_uuid, pool_name)