--- ../../../../../../../tmp/kde-brenda/cervisiaIzJDQa-og_calendar.module-BASE	2009-01-20 16:04:44.000000000 +1300
+++ og_calendar.module	2009-01-20 16:04:17.000000000 +1300
@@ -132,7 +132,7 @@
  * Implementation of hook_db_rewrite_sql().
  */
 function og_calendar_db_rewrite_sql($query, $primary_table, $primary_field, $args) {
-  if ($args["event_get_events_event"] && $args["og_nid"]) {
+  if (isset($args["event_get_events_event"]) && $args["og_nid"]) {
     $array = array();
     $array['join'] = "JOIN {og_ancestry} og ON og.nid = n.nid";
     $array['where'] = "group_nid = " .$args["og_nid"];