diff --git a/application/controllers/AccountController.php b/application/controllers/AccountController.php
index 9f247dcd3..4dc655452 100644
--- a/application/controllers/AccountController.php
+++ b/application/controllers/AccountController.php
@@ -69,7 +69,7 @@ class AccountController extends Controller
 
         $form = new PreferenceForm();
         $form->setPreferences($user->getPreferences());
-        if ($config->get('config_backend', 'db') !== 'none') {
+        if ($config->get('config_backend', 'db') !== 'none' && isset($config->config_resource)) {
             $form->setStore(PreferencesStore::create(new ConfigObject(array(
                 'store'     => $config->get('config_backend', 'db'),
                 'resource'  => $config->config_resource