diff --git a/html/core/XCube_Utils.class.php b/html/core/XCube_Utils.class.php
index e8da4ec98..bd09932d1 100644
--- a/html/core/XCube_Utils.class.php
+++ b/html/core/XCube_Utils.class.php
@@ -33,7 +33,7 @@ function XCube_Utils()
 	 * @deprecated XCube 1.0 will remove this method. Don't use static function of XCube
 	 *             layer for redirect.
 	 */
-	function redirectHeader($url, $time, $messages = null)
+	public static function redirectHeader($url, $time, $messages = null)
 	{
 		$root =& XCube_Root::getSingleton();
 		$root->mController->executeRedirect($url, $time, $messages);
@@ -70,7 +70,7 @@ function redirectHeader($url, $time, $messages = null)
 	 *     This method doesn't implement the provider which knows how to format
 	 *     for each locales. So, this method is interim implement.
 	 */
-	function formatString()
+	public static function formatString()
 	{
 		$arr = func_get_args();