diff --git a/postgres-appliance/bootstrap/clone_with_wale.py b/postgres-appliance/bootstrap/clone_with_wale.py
index 267f6dc61..73ad1efdd 100755
--- a/postgres-appliance/bootstrap/clone_with_wale.py
+++ b/postgres-appliance/bootstrap/clone_with_wale.py
@@ -69,7 +69,7 @@ def choose_backup(output, recovery_target_time):
         raise Exception("wal-e could not found any backups")
     match_timestamp = match = None
     for backup in backup_list:
-        last_modified = parse(backup['last_modified'])
+        last_modified = parse('%s %s' % (backup['last_modified'], backup['expanded_size_bytes']))
         if last_modified < recovery_target_time:
             if match is None or last_modified > match_timestamp:
                 match = backup