diff --git a/resources/default_tweaks.py b/resources/default_tweaks.py
index a81479f52a..ab078629ed 100644
--- a/resources/default_tweaks.py
+++ b/resources/default_tweaks.py
@@ -186,7 +186,9 @@ gui_last_modified_display_format = 'dd MMM yyyy'
 # This flag affects calibre's library display. It has no effect on devices. In
 # addition, titles for books added before changing the flag will retain their
 # order until the title is edited. Double-clicking on a title and hitting return
-# without changing anything is sufficient to change the sort.
+# without changing anything is sufficient to change the sort. Or you can use
+# the 'Update title sort' action in the Bulk metadata edit dialog to update
+# it for many books at once.
 title_series_sorting = 'library_order'
 
 #: Control formatting of title and series when used in templates