diff --git a/wcs_olap/feeder.py b/wcs_olap/feeder.py
index fd0e83b..28cac9a 100644
--- a/wcs_olap/feeder.py
+++ b/wcs_olap/feeder.py
@@ -631,7 +631,7 @@ class WcsFormdefFeeder(object):
                 else:
                     # open item field, from data sources...
                     self.create_labeled_table_serial(table_name, comment=comment)
-                field_def = 'smallint REFERENCES "%s" (id)' % table_name
+                field_def = 'integer REFERENCES "%s" (id)' % table_name
             elif field.type == 'bool':
                 field_def = 'boolean'
             elif field.type == 'string':