Index: modules/system/system.install
===================================================================
RCS file: /cvs/drupal/drupal/modules/system/system.install,v
retrieving revision 1.180
diff -u -F^f -r1.180 system.install
--- modules/system/system.install	14 Nov 2007 15:24:16 -0000	1.180
+++ modules/system/system.install	14 Nov 2007 23:56:07 -0000
@@ -4534,6 +4534,7 @@ function system_update_6036() {
  */
 function system_update_6037() {
   $ret = array();
+  db_change_field($ret, 'blocks', 'region', 'region', array('type' => 'varchar', 'length' => 64, 'not null' => TRUE, 'default' => ''));
   $ret[] = update_sql("UPDATE {blocks} SET region = '' WHERE status = 0");
   return $ret;
 }