diff --git a/tests/PHPUnit/proxy/index.php b/tests/PHPUnit/proxy/index.php
index 33620266e54c0dbb6148a5910c7c34a55edddea4..8ce7649e32e06b73b52a0c0bfb7377c5c4770d44 100644
--- a/tests/PHPUnit/proxy/index.php
+++ b/tests/PHPUnit/proxy/index.php
@@ -30,7 +30,11 @@ $controller = \Piwik\FrontController::getInstance();
 \Piwik\Config::getInstance()->Plugins['Plugins'] = \Piwik\Plugin\Manager::getInstance()->getAllPluginsNames();
 
 $controller->init();
-$controller->dispatch();
+$response = $controller->dispatch();
+
+if (!is_null($response)) {
+    echo $response;
+}
 
 ob_flush();