diff --git a/docs/api-guide/fields.md b/docs/api-guide/fields.md
index c136509b3..0b50aa959 100644
--- a/docs/api-guide/fields.md
+++ b/docs/api-guide/fields.md
@@ -104,6 +104,7 @@ A serializer definition that looked like this:
         expired = serializers.Field(source='has_expired')
         
         class Meta:
+            model = Account
             fields = ('url', 'owner', 'name', 'expired')
 
 Would produce output similar to: