diff --git a/README.rst b/README.rst
index 0c70c0b..8b6baa6 100644
--- a/README.rst
+++ b/README.rst
@@ -456,10 +456,10 @@ instead of a built-in one.
 
 .. code:: python
 
-    >>> Schema(Use(int, error='Invalid year')).validate('XVII')
+    >>> Schema(Use(int, error='Invalid year {}')).validate('XVII')
     Traceback (most recent call last):
     ...
-    schema.SchemaError: Invalid year
+    schema.SchemaError: Invalid year XVII
 
 You can see all errors that occurred by accessing exception's ``exc.autos``
 for auto-generated error messages, and ``exc.errors`` for errors
@@ -469,6 +469,7 @@ You can exit with ``sys.exit(exc.code)`` if you want to show the messages
 to the user without traceback. ``error`` messages are given precedence in that
 case.
 
+
 A JSON API example
 -------------------------------------------------------------------------------