diff --git a/src/Qiniu/Storage/ResumeUploader.php b/src/Qiniu/Storage/ResumeUploader.php
index 7253c932..659f4c6e 100644
--- a/src/Qiniu/Storage/ResumeUploader.php
+++ b/src/Qiniu/Storage/ResumeUploader.php
@@ -24,6 +24,7 @@ final class ResumeUploader
     private $contexts;
     private $host;
     private $currentUrl;
+    private $config;
 
     /**
      * 上传二进制流到七牛
@@ -52,6 +53,7 @@ public function __construct(
         $this->size = $size;
         $this->params = $params;
         $this->mime = $mime;
+        $this->config = $config;
         $this->host = $config::$upHost;
         $this->contexts = array();
     }
@@ -77,7 +79,7 @@ public function upload()
                 $ret = $response->json();
             }
             if ($response->statusCode < 0) {
-                $this->host = $config::$upHostBackup;
+                $this->host = $this->config::$upHostBackup;
             }
             if ($response->needRetry() || !isset($ret['crc32']) || $crc != $ret['crc32']) {
                 $response = $this->makeBlock($data, $blockSize);
diff --git a/tests/Qiniu/Tests/ResumeUpTest.php b/tests/Qiniu/Tests/ResumeUpTest.php
index dd7e7e4a..a03abc1e 100644
--- a/tests/Qiniu/Tests/ResumeUpTest.php
+++ b/tests/Qiniu/Tests/ResumeUpTest.php
@@ -3,6 +3,8 @@
 
 use Qiniu\Storage\ResumeUploader;
 use Qiniu\Storage\UploadManager;
+use Qiniu\Zone;
+use Qiniu\Config;
 
 class ResumeUpTest extends \PHPUnit_Framework_TestCase
 {
@@ -29,6 +31,20 @@ public function test4ML()
         unlink($tempFile);
     }
 
+    public function test4ML2()
+    {
+        $key = 'resumePutFile4ML';
+        $zone = new Zone('http://up.fake.com', 'http://up.qiniu.com');
+        $cfg = new Config($zone);
+        $upManager = new UploadManager($cfg);
+        $token = $this->auth->uploadToken($this->bucketName, $key);
+        $tempFile = qiniuTempFile(4*1024*1024+10);
+        list($ret, $error) = $upManager->putFile($token, $key, $tempFile);
+        $this->assertNull($error);
+        $this->assertNotNull($ret['hash']);
+        unlink($tempFile);
+    }
+
     // public function test8M()
     // {
     //     $key = 'resumePutFile8M';