diff --git a/source/stdlib.rst b/source/stdlib.rst
index 51e18a5..a271e2f 100644
--- a/source/stdlib.rst
+++ b/source/stdlib.rst
@@ -23,7 +23,7 @@ if you need to support both Python 2 and Python 3 without ``2to3`` conversion.
 The ``six`` module\ [#six]_ has support for most of the standard library
 reorganization. You can import the reorganized modules from ``six.moves``::
 
-    >>> from six.moves import cStringIO
+    >>> from six.moves import StringIO
 
 In Python 2 this will be equivalent to::