diff --git a/go/operation/chunked_file.go b/go/operation/chunked_file.go
index f8266087b..cb9ac80df 100644
--- a/go/operation/chunked_file.go
+++ b/go/operation/chunked_file.go
@@ -65,7 +65,7 @@ func LoadChunkManifest(buffer []byte, isGzipped bool) (*ChunkManifest, error) {
 	return &cm, nil
 }
 
-func (cm *ChunkManifest) GetData() ([]byte, error) {
+func (cm *ChunkManifest) Marshal() ([]byte, error) {
 	return json.Marshal(cm)
 }
 
diff --git a/go/operation/submit.go b/go/operation/submit.go
index ac5a3b55f..d996d63f0 100644
--- a/go/operation/submit.go
+++ b/go/operation/submit.go
@@ -180,7 +180,7 @@ func upload_one_chunk(filename string, reader io.Reader, master,
 }
 
 func upload_chunked_file_manifest(fileUrl string, manifest *ChunkManifest, jwt security.EncodedJwt) error {
-	buf, e := manifest.GetData()
+	buf, e := manifest.Marshal()
 	if e != nil {
 		return e
 	}