diff --git a/src/Illuminate/Filesystem/FilesystemManager.php b/src/Illuminate/Filesystem/FilesystemManager.php
index 35b3b1f92213..961c624cfc2f 100644
--- a/src/Illuminate/Filesystem/FilesystemManager.php
+++ b/src/Illuminate/Filesystem/FilesystemManager.php
@@ -239,7 +239,7 @@ protected function getRackspaceContainer(Rackspace $client, array $config)
      */
     protected function createFlysystem(AdapterInterface $adapter, array $config)
     {
-        $config = Arr::only($config, ['visibility']);
+        $config = Arr::only($config, ['visibility', 'disable_asserts']);
 
         return new Flysystem($adapter, count($config) > 0 ? $config : null);
     }