diff --git a/src/Http/Controller/S3MultipartController.php b/src/Http/Controller/S3MultipartController.php
index 38ca775..abe5225 100644
--- a/src/Http/Controller/S3MultipartController.php
+++ b/src/Http/Controller/S3MultipartController.php
@@ -47,8 +47,9 @@ public function uploadParameters(Request $request)
         ]);
 
         $params = [
-            'success_action_status' => '201',
-            'content-type' => $data['type'],
+            'ContentType' => $data['type'],
+            // TODO: find out why metadata addition is failing,
+            // 'Metadata' => $this->encodeMetadata($data['metadata']),
         ];
 
         if ($acl = config('multipart-of-madness.acl')) {