diff --git a/data/class/pages/admin/contents/LC_Page_Admin_Contents_FileManager.php b/data/class/pages/admin/contents/LC_Page_Admin_Contents_FileManager.php
index 69a8267ed1..772c952b74 100644
--- a/data/class/pages/admin/contents/LC_Page_Admin_Contents_FileManager.php
+++ b/data/class/pages/admin/contents/LC_Page_Admin_Contents_FileManager.php
@@ -129,7 +129,7 @@ public function action()
                 $objFormParam->convParam();
                 $this->arrErr = $objFormParam->checkError();
                 $select_file = SC_Helper_FileManager_Ex::convertToAbsolutePath($objFormParam->getValue('select_file'));
-                if ($select_file === realpath(USER_REALDIR)) {
+                if (realpath($select_file) === realpath(USER_REALDIR)) {
                     GC_Utils_Ex::gfPrintLog($select_file.' は削除できません.');
                     $tpl_onload = "alert('user_dataは削除できません');";
                     $this->setTplOnLoad($tpl_onload);