diff --git a/ajax.php b/ajax.php
index 5f4fc8c22f..7f615a018c 100644
--- a/ajax.php
+++ b/ajax.php
@@ -27,19 +27,19 @@ switch ($_POST['type']) {
         break;
     case 'list-tables':
         Util::checkParameters(array('db'), true);
-        $response->addJSON('tables', $GLOBALS['dbi']->getTables($_REQUEST['db']));
+        $response->addJSON('tables', $GLOBALS['dbi']->getTables($_POST['db']));
         break;
     case 'list-columns':
         Util::checkParameters(array('db', 'table'), true);
-        $response->addJSON('columns', $GLOBALS['dbi']->getColumnNames($_REQUEST['db'], $_REQUEST['table']));
+        $response->addJSON('columns', $GLOBALS['dbi']->getColumnNames($_POST['db'], $_POST['table']));
         break;
     case 'config-get':
         Util::checkParameters(array('key'), true);
-        $response->addJSON('value', $GLOBALS['PMA_Config']->get($_REQUEST['key']));
+        $response->addJSON('value', $GLOBALS['PMA_Config']->get($_POST['key']));
         break;
     case 'config-set':
         Util::checkParameters(array('key', 'value'), true);
-        $result = $GLOBALS['PMA_Config']->setUserValue(null, $_REQUEST['key'], json_decode($_REQUEST['value']));
+        $result = $GLOBALS['PMA_Config']->setUserValue(null, $_POST['key'], json_decode($_POST['value']));
         if ($result !== true) {
             $response = Response::getInstance();
             $response->setRequestStatus(false);