diff --git a/group/overview.php b/group/overview.php
index 737f1a405c4..ec567aaf6f4 100644
--- a/group/overview.php
+++ b/group/overview.php
@@ -92,7 +92,9 @@ if ($rs = get_recordset_sql($sql)) {
         if (!array_key_exists($row->groupid, $members[$row->groupingid])) {
             $members[$row->groupingid][$row->groupid] = array();
         }
-        $members[$row->groupingid][$row->groupid][] = $user;
+        if(isset($user->id)){
+           $members[$row->groupingid][$row->groupid][] = $user;
+        }
     }
     rs_close($rs);
 }