diff --git a/weed/pb/filer_pb/filer_client.go b/weed/pb/filer_pb/filer_client.go
index 65bd85c84..12f918137 100644
--- a/weed/pb/filer_pb/filer_client.go
+++ b/weed/pb/filer_pb/filer_client.go
@@ -236,7 +236,7 @@ func Mkdir(filerClient FilerClient, parentDirectoryPath string, dirName string,
 	})
 }
 
-func MkFile(filerClient FilerClient, parentDirectoryPath string, fileName string, chunks []*FileChunk) error {
+func MkFile(filerClient FilerClient, parentDirectoryPath string, fileName string, chunks []*FileChunk, fn func(entry *Entry)) error {
 	return filerClient.WithFilerClient(func(client SeaweedFilerClient) error {
 
 		entry := &Entry{
@@ -252,6 +252,10 @@ func MkFile(filerClient FilerClient, parentDirectoryPath string, fileName string
 			Chunks: chunks,
 		}
 
+		if fn != nil {
+			fn(entry)
+		}
+
 		request := &CreateEntryRequest{
 			Directory: parentDirectoryPath,
 			Entry:     entry,
diff --git a/weed/s3api/filer_multipart.go b/weed/s3api/filer_multipart.go
index 61132c082..5d7bf2ac3 100644
--- a/weed/s3api/filer_multipart.go
+++ b/weed/s3api/filer_multipart.go
@@ -71,6 +71,12 @@ func (s3a *S3ApiServer) completeMultipartUpload(input *s3.CompleteMultipartUploa
 		return nil, s3err.ErrNoSuchUpload
 	}
 
+	pentry, err := s3a.getEntry(s3a.genUploadsFolder(*input.Bucket),*input.UploadId)
+	if err != nil {
+		glog.Errorf("completeMultipartUpload %s %s error: %v", *input.Bucket, *input.UploadId, err)
+		return nil, s3err.ErrNoSuchUpload
+	}
+
 	var finalParts []*filer_pb.FileChunk
 	var offset int64
 
@@ -106,7 +112,16 @@ func (s3a *S3ApiServer) completeMultipartUpload(input *s3.CompleteMultipartUploa
 		dirName = dirName[:len(dirName)-1]
 	}
 
-	err = s3a.mkFile(dirName, entryName, finalParts)
+	err = s3a.mkFile(dirName, entryName, finalParts,func(entry *filer_pb.Entry) {
+		if entry.Extended == nil {
+			entry.Extended = make(map[string][]byte)
+		}
+		for k,v := range pentry.Extended{
+			if k != "key" {
+				entry.Extended[k] = v
+			}
+		}
+	})
 
 	if err != nil {
 		glog.Errorf("completeMultipartUpload %s/%s error: %v", dirName, entryName, err)
diff --git a/weed/s3api/filer_util.go b/weed/s3api/filer_util.go
index 1803332a3..92267a154 100644
--- a/weed/s3api/filer_util.go
+++ b/weed/s3api/filer_util.go
@@ -15,9 +15,9 @@ func (s3a *S3ApiServer) mkdir(parentDirectoryPath string, dirName string, fn fun
 
 }
 
-func (s3a *S3ApiServer) mkFile(parentDirectoryPath string, fileName string, chunks []*filer_pb.FileChunk) error {
+func (s3a *S3ApiServer) mkFile(parentDirectoryPath string, fileName string, chunks []*filer_pb.FileChunk, fn func(entry *filer_pb.Entry)) error {
 
-	return filer_pb.MkFile(s3a, parentDirectoryPath, fileName, chunks)
+	return filer_pb.MkFile(s3a, parentDirectoryPath, fileName, chunks,fn)
 
 }