diff --git a/Doc/library/collections.rst b/Doc/library/collections.rst
index a9c8965..1815c79 100644
--- a/Doc/library/collections.rst
+++ b/Doc/library/collections.rst
@@ -742,7 +742,7 @@
       >>> p._asdict()
       OrderedDict([('x', 11), ('y', 22)])
 
-   .. versionchanged 3.1
+   .. versionchanged:: 2.7
       Returns an :class:`OrderedDict` instead of a regular :class:`dict`.
 
 .. method:: somenamedtuple._replace(kwargs)