diff --git a/files/scripts/updates-uptime-cmd.py b/files/scripts/updates-uptime-cmd.py
index a0de2a6ab4..07c0358a5f 100755
--- a/files/scripts/updates-uptime-cmd.py
+++ b/files/scripts/updates-uptime-cmd.py
@@ -755,7 +755,7 @@ def _hist_lengths(hosts=None):
   # to enable it..
       for backup in reversed(backups):
           data = list(sorted(lines2datas(bfname2lines(backup))))
-          data = filter_name_datas(data, hosts)
+          data = list(filter_name_datas(data, hosts))
           updates = _ui_int(sum(d.rpms for d in data))
           hl = max(hl, len(_ui_int(len(data))))
           ul = max(ul, len(updates))