diff --git a/bbs/poll_etc_update.php b/bbs/poll_etc_update.php
index ee189eb12..9828bdc35 100644
--- a/bbs/poll_etc_update.php
+++ b/bbs/poll_etc_update.php
@@ -42,7 +42,7 @@ if ($w == '')
 }
 else if ($w == 'd')
 {
-    if ($member[mb_id] || $is_admin == 'super')
+    if ($member['mb_id'] || $is_admin == 'super')
     {
         $sql = " delete from {$g5['poll_etc_table']} where pc_id = '{$pc_id}' ";
         if (!$is_admin)