diff --git a/guidelines/pagination_filter_sort.rst b/guidelines/pagination_filter_sort.rst
index 6815861..119672c 100644
--- a/guidelines/pagination_filter_sort.rst
+++ b/guidelines/pagination_filter_sort.rst
@@ -275,7 +275,7 @@ and returning an empty page is a poor API when the user explicitly requested a
 number of results.
 
 Time based filtering queries
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 To support filtering based on time intervals such as mentioned in the `ISO8601
 intervals wikipedia page`_, it should be possible to express the following