diff --git a/cps/web.py b/cps/web.py
index 961e1df7f..99fb362a2 100644
--- a/cps/web.py
+++ b/cps/web.py
@@ -1026,7 +1026,7 @@ def series_list():
                             .count())
             if no_series_count:
                 entries.append([db.Category(_("None"), "-1"), no_series_count])
-            entries = sorted(entries, key=lambda x: x[0].name.lower(), reverse=not order_no)
+            entries = sorted(entries, key=lambda x: (x[0].sort or x[0].name).lower(), reverse=not order_no)
             return render_title_template('list.html',
                                          entries=entries,
                                          folder='web.books_list',