diff --git a/docs/ref/contrib/postgres/fields.txt b/docs/ref/contrib/postgres/fields.txt
index 29e4013f68..54ab7fc174 100644
--- a/docs/ref/contrib/postgres/fields.txt
+++ b/docs/ref/contrib/postgres/fields.txt
@@ -682,14 +682,13 @@ operators ``@>``, ``<@``, and ``&&`` respectively.
     >>> Event.objects.filter(ages__contained_by=NumericRange(0, 15))
     <QuerySet [<Event: Soft play>]>
 
-.. versionadded 1.9
+.. versionadded:: 1.9
 
-    The `contained_by` lookup is also available on the non-range field types:
-    :class:`~django.db.models.fields.IntegerField`,
-    :class:`~django.db.models.fields.BigIntegerField`,
-    :class:`~django.db.models.fields.FloatField`,
-    :class:`~django.db.models.fields.DateField`, and
-    :class:`~django.db.models.fields.DateTimeField`. For example::
+The ``contained_by`` lookup is also available on the non-range field types:
+:class:`~django.db.models.IntegerField`,
+:class:`~django.db.models.BigIntegerField`,
+:class:`~django.db.models.FloatField`, :class:`~django.db.models.DateField`,
+and :class:`~django.db.models.DateTimeField`. For example::
 
     >>> from psycopg2.extras import DateTimeTZRange
     >>> Event.objects.filter(start__contained_by=DateTimeTZRange(