--- modules/comment/comment.install.1.62	Tue Mar 16 12:36:01 2010
+++ modules/comment/comment.install	Tue Mar 16 12:37:29 2010
@@ -36,7 +36,7 @@ function comment_enable() {
   // Insert records into the node_comment_statistics for nodes that are missing.
   $query = db_select('node', 'n');
   $query->leftJoin('node_comment_statistics', 'ncs', 'ncs.nid = n.nid');
-  $query->addField('n', 'changed', 'last_comment_timestamp');
+  $query->addField('n', 'created', 'last_comment_timestamp');
   $query->addField('n', 'uid', 'last_comment_uid');
   $query->addField('n', 'nid');
   $query->addExpression('0', 'comment_count');