diff --git a/src/Application.php b/src/Application.php
index 2064f418..6e9c4fd8 100644
--- a/src/Application.php
+++ b/src/Application.php
@@ -1519,7 +1519,6 @@ protected function registerContainerAliases()
         'Illuminate\Contracts\Cache\Repository' => 'registerCacheBindings',
         'config' => 'registerConfigBindings',
         'composer' => 'registerComposerBindings',
-        'config' => 'registerConfigBindings',
         'cookie' => 'registerCookieBindings',
         'Illuminate\Contracts\Cookie\Factory' => 'registerCookieBindings',
         'Illuminate\Contracts\Cookie\QueueingFactory' => 'registerCookieBindings',