diff --git a/config/environment/ui-test.php b/config/environment/ui-test.php
index 0c641530138a28432027c29cb90284d4e85dafc8..aff9457a5332abe68a78a2907058e57ed1a4b85e 100644
--- a/config/environment/ui-test.php
+++ b/config/environment/ui-test.php
@@ -7,7 +7,7 @@ return array(
         return $config;
     }),
 
-    'observers.global' => array(
+    'observers.global' => \DI\add(array(
 
         array('Request.dispatch.end', function (&$result) {
             $config = \Piwik\Config::getInstance();
@@ -26,6 +26,6 @@ return array(
         array('Controller.ExampleRssWidget.rssPiwik.end', function (&$result, $parameters) {
             $result = "";
         }),
-    ),
+    )),
 
 );