Fixed the language decl for htis block
diff --git a/README.rst b/README.rst
index c85ae95..708df21 100644
--- a/README.rst
+++ b/README.rst
@@ -15,7 +15,7 @@
 ``cryptography`` includes both high level recipes, and low level algorithms.
 For example, to encrypt something with ``cryptography``:
 
-.. code-block:: python
+.. code-block:: pycon
 
     >>> from cryptography.fernet import Fernet
     >>> # Put this somewhere safe!