diff --git a/scrapy/trunk/scrapy/contrib_exp/newitem/fields.py b/scrapy/trunk/scrapy/contrib_exp/newitem/fields.py
index bd45b2fe1..73da5f283 100644
--- a/scrapy/trunk/scrapy/contrib_exp/newitem/fields.py
+++ b/scrapy/trunk/scrapy/contrib_exp/newitem/fields.py
@@ -3,6 +3,10 @@ import decimal
 import re
 
 
+__all__ = ['BooleanItemField', 'DateItemField', 'DecimalItemField',
+           'FloatItemField', 'IntegerItemField', 'StringItemField']
+
+
 class ItemFieldValueError(Exception):
     pass