diff --git a/Godeps/Godeps.json b/Godeps/Godeps.json
index 3dbf5326f..9fb51c3e3 100644
--- a/Godeps/Godeps.json
+++ b/Godeps/Godeps.json
@@ -46,11 +46,11 @@
 		},
 		{
 			"ImportPath": "github.com/denverdino/aliyungo/oss",
-			"Rev": "641bb4f0ddb552750324cb54c0140ca08865abd0"
+			"Rev": "0e0f322d0a54b994dea9d32541050d177edf6aa3"
 		},
 		{
 			"ImportPath": "github.com/denverdino/aliyungo/util",
-			"Rev": "641bb4f0ddb552750324cb54c0140ca08865abd0"
+			"Rev": "0e0f322d0a54b994dea9d32541050d177edf6aa3"
 		},
 		{
 			"ImportPath": "github.com/docker/docker/pkg/tarsum",
diff --git a/Godeps/_workspace/src/github.com/denverdino/aliyungo/oss/multi.go b/Godeps/_workspace/src/github.com/denverdino/aliyungo/oss/multi.go
index 454d53b70..5b6491ecc 100644
--- a/Godeps/_workspace/src/github.com/denverdino/aliyungo/oss/multi.go
+++ b/Godeps/_workspace/src/github.com/denverdino/aliyungo/oss/multi.go
@@ -139,6 +139,9 @@ func (b *Bucket) InitMulti(key string, contType string, perm ACL, options Option
 }
 
 func (m *Multi) PutPartCopy(n int, options CopyOptions, source string) (*CopyObjectResult, Part, error) {
+	// TODO source format a /BUCKET/PATH/TO/OBJECT
+	// TODO not a good design. API could be changed to PutPartCopyWithinBucket(..., path) and PutPartCopyFromBucket(bucket, path)
+
 	headers := make(http.Header)
 	headers.Set("x-oss-copy-source", source)
 
@@ -150,8 +153,9 @@ func (m *Multi) PutPartCopy(n int, options CopyOptions, source string) (*CopyObj
 	sourceBucket := m.Bucket.Client.Bucket(strings.TrimRight(strings.Split(source, "/")[1], "/"))
 	//log.Println("source: ", source)
 	//log.Println("sourceBucket: ", sourceBucket.Name)
-	//log.Println("HEAD: ", strings.Split(source, "/")[2])
-	sourceMeta, err := sourceBucket.Head(strings.Split(source, "/")[2], nil)
+	//log.Println("HEAD: ", strings.strings.SplitAfterN(source, "/", 3)[2])
+	// TODO SplitAfterN can be use in bucket name
+	sourceMeta, err := sourceBucket.Head(strings.SplitAfterN(source, "/", 3)[2], nil)
 	if err != nil {
 		return nil, Part{}, err
 	}
diff --git a/registry/storage/driver/oss/oss.go b/registry/storage/driver/oss/oss.go
index 21a7e32ab..b3ab11c98 100644
--- a/registry/storage/driver/oss/oss.go
+++ b/registry/storage/driver/oss/oss.go
@@ -492,7 +492,7 @@ func (d *driver) WriteStream(ctx context.Context, path string, offset int64, rea
 				// currentLength >= offset >= chunkSize
 				_, part, err = multi.PutPartCopy(partNumber,
 					oss.CopyOptions{CopySourceOptions: "bytes=0-" + strconv.FormatInt(offset-1, 10)},
-					d.Bucket.Name+"/"+d.ossPath(path))
+					d.Bucket.Path(d.ossPath(path)))
 				if err != nil {
 					return 0, err
 				}
@@ -586,7 +586,7 @@ func (d *driver) WriteStream(ctx context.Context, path string, offset int64, rea
 				// offset > currentLength >= chunkSize
 				_, part, err = multi.PutPartCopy(partNumber,
 					oss.CopyOptions{},
-					d.Bucket.Name+"/"+d.ossPath(path))
+					d.Bucket.Path(d.ossPath(path)))
 				if err != nil {
 					return 0, err
 				}