diff -r 3e94b1524694 sites/all/modules/webform_report/webform_report.module
--- a/sites/all/modules/webform_report/webform_report.module	Fri Feb 03 20:49:42 2012 +0100
+++ b/sites/all/modules/webform_report/webform_report.module	Fri Feb 03 20:50:24 2012 +0100
@@ -312,7 +312,6 @@
   db_update('webform_report')
     ->fields(array(
       'description' => $node->description,
-      'wnid' => $node->wnid,
       'columns' => serialize($node->columns),
       'sorton' => serialize($node->sorton),
       'filters' => serialize($node->filters),