diff --git a/src/Composer/Downloader/DownloadManager.php b/src/Composer/Downloader/DownloadManager.php
index 3ee786c17..2fcfdd392 100644
--- a/src/Composer/Downloader/DownloadManager.php
+++ b/src/Composer/Downloader/DownloadManager.php
@@ -25,7 +25,6 @@ use React\Promise\PromiseInterface;
 class DownloadManager
 {
     private $io;
-    private $httpDownloader;
     private $preferDist = false;
     private $preferSource = false;
     private $packagePreferences = array();