diff --git a/data/class/pages/LC_Page_Sitemap.php b/data/class/pages/LC_Page_Sitemap.php
index 6d1c1c293a..05677edf98 100644
--- a/data/class/pages/LC_Page_Sitemap.php
+++ b/data/class/pages/LC_Page_Sitemap.php
@@ -263,7 +263,6 @@ public function getPageData($where = '', $arrVal = '')
         $sql .= ' ,author';             // authorタグ
         $sql .= ' ,description';        // descriptionタグ
         $sql .= ' ,keyword';            // keywordタグ
-        $sql .= ' ,update_url';         // 更新URL
         $sql .= ' ,create_date';        // データ作成日
         $sql .= ' ,update_date';        // データ更新日
         $sql .= ' FROM ';
diff --git a/data/class/pages/admin/design/LC_Page_Admin_Design_MainEdit.php b/data/class/pages/admin/design/LC_Page_Admin_Design_MainEdit.php
index 00de74a8d8..d19a83317e 100644
--- a/data/class/pages/admin/design/LC_Page_Admin_Design_MainEdit.php
+++ b/data/class/pages/admin/design/LC_Page_Admin_Design_MainEdit.php
@@ -270,7 +270,6 @@ public function registerPage($arrParams, &$objLayout)
 
         $table = 'dtb_pagelayout';
         $arrValues = $objQuery->extractOnlyColsOf($table, $arrParams);
-        $arrValues['update_url'] = $_SERVER['HTTP_REFERER'];
         $arrValues['update_date'] = 'CURRENT_TIMESTAMP';
 
         // 新規登録