diff --git a/application/core/Files/AsynchronousFileReader.php b/application/core/Files/AsynchronousFileReader.php
index f0bf35e6..68507fd2 100644
--- a/application/core/Files/AsynchronousFileReader.php
+++ b/application/core/Files/AsynchronousFileReader.php
@@ -89,11 +89,10 @@ class AsynchronousFileReader {
 			->set(CURLOPT_RETURNTRANSFER, true);
 
 		$request->addListener('complete', function (Event $event) use (&$function) {
-			/** @var Response $response */
 			$response = $event->response;
 
-			$error   = "";
-			$content = "";
+			$error   = null;
+			$content = null;
 			if ($response->hasError()) {
 				$error = $response->getError()->getMessage();
 			} else {
diff --git a/application/core/Libs/curl-easy/cURL/Event.php b/application/core/Libs/curl-easy/cURL/Event.php
index a1f6fdd9..d98238c7 100644
--- a/application/core/Libs/curl-easy/cURL/Event.php
+++ b/application/core/Libs/curl-easy/cURL/Event.php
@@ -5,4 +5,6 @@ use Symfony\Component\EventDispatcher\Event as SymfonyEvent;
 
 class Event extends SymfonyEvent
 {
+	/** @var Response $response */
+	public $response = null;
 }