diff --git a/libs/curl-easy/cURL/RequestsQueue.php b/libs/curl-easy/cURL/RequestsQueue.php
index 6428b0ff..65981a81 100644
--- a/libs/curl-easy/cURL/RequestsQueue.php
+++ b/libs/curl-easy/cURL/RequestsQueue.php
@@ -115,7 +115,9 @@ class RequestsQueue extends EventDispatcher implements RequestsQueueInterface, \
 			$event           = new Event();
 			$event->request  = $request;
 			$event->response = new Response($request, curl_multi_getcontent($request->getHandle()));
-			$event->response->setHeaders($event->request->getResponseHeaders());
+			if ($event->request->getResponseHeaders() !== null) {
+				$event->response->setHeaders($event->request->getResponseHeaders());
+			}
 			if ($result !== CURLE_OK) {
 				$event->response->setError(new Error(curl_error($request->getHandle()), $result));
 			}