diff --git a/CHANGES.txt b/CHANGES.txt
index 2ecc918..6750b53 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,6 +1,12 @@
 Changes
 =======
 
+Next release
+------------
+
+- Docstring fixes to ``colander.SchemaNode`` (``missing`` is not the
+  ``null`` value when required, it's a special marker value).
+
 0.7.3 (2010/09/02)
 ------------------
 
diff --git a/colander/__init__.py b/colander/__init__.py
index e012d97..4006bb3 100644
--- a/colander/__init__.py
+++ b/colander/__init__.py
@@ -1151,8 +1151,8 @@ class SchemaNode(object):
       Default: :attr:`colander.null`.
 
     - ``missing``: The default deserialization value for this node.
-      If it is not provided, the missing value of this node will be
-      :attr:`colander.null`, indicating that it is considered
+      If it is not provided, the missing value of this node will be a
+      special marker value, indicating that it is considered
       'required' (the ``required`` computed attribute will be
       ``True``).