diff --git a/docs/howto/custom-model-fields.txt b/docs/howto/custom-model-fields.txt
index 57c805e..12ea6ca 100644
--- a/docs/howto/custom-model-fields.txt
+++ b/docs/howto/custom-model-fields.txt
@@ -33,10 +33,10 @@ Our example object
 Creating custom fields requires a bit of attention to detail. To make things
 easier to follow, we'll use a consistent example throughout this document.
 Suppose you have a Python object representing the deal of cards in a hand of
-Bridge_. (Don't worry, you don't know how to play Bridge to follow this
+Bridge_. (Don't worry, you don't have to know how to play Bridge to follow this
 example. You only need to know that 52 cards are dealt out equally to four
-players, who are traditionally called *north*, *east*, *south* and *west*.)
-Our class looks something like this::
+players, who are traditionally called *north*, *east*, *south* and *west*.) Our
+class looks something like this::
 
     class Hand(object):
         def __init__(self, north, east, south, west):