diff --git a/README.rst b/README.rst
index 9969c682..52543072 100644
--- a/README.rst
+++ b/README.rst
@@ -54,7 +54,9 @@ Or, you can just create the string and examine the data:
 User-Agent constructor
 ----------------------
 
-You can easily construct a requests-style ``User-Agent`` string::
+You can easily construct a requests-style ``User-Agent`` string:
+
+.. code-block:: python
 
     from requests_toolbelt import user_agent