diff --git a/registry/registry.go b/registry/registry.go
index cac77ba049..40b9872a4a 100644
--- a/registry/registry.go
+++ b/registry/registry.go
@@ -17,8 +17,10 @@ import (
 	"strings"
 )
 
-var ErrAlreadyExists = errors.New("Image already exists")
-var ErrInvalidRepositoryName = errors.New("Invalid repository name (ex: \"registry.domain.tld/myrepos\")")
+var (
+	ErrAlreadyExists         = errors.New("Image already exists")
+	ErrInvalidRepositoryName = errors.New("Invalid repository name (ex: \"registry.domain.tld/myrepos\")")
+)
 
 func pingRegistryEndpoint(endpoint string) error {
 	if endpoint == auth.IndexServerAddress() {
@@ -266,8 +268,11 @@ func (r *Registry) GetRemoteTags(registries []string, repository string, token [
 }
 
 func (r *Registry) GetRepositoryData(indexEp, remote string) (*RepositoryData, error) {
+
 	repositoryTarget := fmt.Sprintf("%srepositories/%s/images", indexEp, remote)
 
+	utils.Debugf("[registry] Calling GET %s", repositoryTarget)
+
 	req, err := r.opaqueRequest("GET", repositoryTarget, nil)
 	if err != nil {
 		return nil, err
@@ -378,7 +383,6 @@ func (r *Registry) PushImageJSONRegistry(imgData *ImgData, jsonRaw []byte, regis
 	req.Header.Set("Authorization", "Token "+strings.Join(token, ","))
 	r.setUserAgent(req)
 
-	utils.Debugf("Setting checksum for %s: %s", imgData.ID, imgData.Checksum)
 	res, err := doWithCookies(r.client, req)
 	if err != nil {
 		return fmt.Errorf("Failed to upload metadata: %s", err)
@@ -400,11 +404,12 @@ func (r *Registry) PushImageJSONRegistry(imgData *ImgData, jsonRaw []byte, regis
 	return nil
 }
 
-func (r *Registry) PushImageLayerRegistry(imgID string, layer io.Reader, registry string, token []string) (checksum string, err error) {
+func (r *Registry) PushImageLayerRegistry(imgID string, layer io.Reader, registry string, token []string, jsonRaw []byte) (checksum string, err error) {
 
 	utils.Debugf("[registry] Calling PUT %s", registry+"images/"+imgID+"/layer")
 
 	tarsumLayer := &utils.TarSum{Reader: layer}
+
 	req, err := http.NewRequest("PUT", registry+"images/"+imgID+"/layer", tarsumLayer)
 	if err != nil {
 		return "", err
@@ -426,7 +431,7 @@ func (r *Registry) PushImageLayerRegistry(imgID string, layer io.Reader, registr
 		}
 		return "", fmt.Errorf("Received HTTP code %d while uploading layer: %s", res.StatusCode, errBody)
 	}
-	return tarsumLayer.Sum(), nil
+	return tarsumLayer.Sum(jsonRaw), nil
 }
 
 func (r *Registry) opaqueRequest(method, urlStr string, body io.Reader) (*http.Request, error) {
@@ -474,7 +479,7 @@ func (r *Registry) PushImageJSONIndex(indexEp, remote string, imgList []*ImgData
 	}
 
 	u := fmt.Sprintf("%srepositories/%s/%s", indexEp, remote, suffix)
-	utils.Debugf("PUT %s", u)
+	utils.Debugf("[registry] PUT %s", u)
 	utils.Debugf("Image list pushed to index:\n%s\n", imgListJSON)
 	req, err := r.opaqueRequest("PUT", u, bytes.NewReader(imgListJSON))
 	if err != nil {
diff --git a/server.go b/server.go
index 6944df315f..7309279805 100644
--- a/server.go
+++ b/server.go
@@ -690,7 +690,7 @@ func (srv *Server) pushImage(r *registry.Registry, out io.Writer, remote, imgID,
 	}
 
 	// Send the layer
-	if checksum, err := r.PushImageLayerRegistry(imgData.ID, utils.ProgressReader(layerData, int(layerData.Size), out, sf.FormatProgress("Pushing", "%8v/%v (%v)"), sf), ep, token); err != nil {
+	if checksum, err := r.PushImageLayerRegistry(imgData.ID, utils.ProgressReader(layerData, int(layerData.Size), out, sf.FormatProgress("Pushing", "%8v/%v (%v)"), sf), ep, token, jsonRaw); err != nil {
 		return err
 	} else {
 		imgData.Checksum = checksum
diff --git a/utils/tarsum.go b/utils/tarsum.go
index 0fd5ac106b..015b9b3076 100644
--- a/utils/tarsum.go
+++ b/utils/tarsum.go
@@ -142,14 +142,17 @@ func (ts *TarSum) Read(buf []byte) (int, error) {
 	return ts.bufGz.Read(buf)
 }
 
-func (ts *TarSum) Sum() string {
+func (ts *TarSum) Sum(extra []byte) string {
 	sort.Strings(ts.sums)
 	h := sha256.New()
 	for _, sum := range ts.sums {
 		Debugf("-->%s<--", sum)
 		h.Write([]byte(sum))
 	}
-	checksum := "tarsum+sha256:" + hex.EncodeToString(ts.h.Sum(nil))
+	if extra != nil {
+		h.Write(extra)
+	}
+	checksum := "tarsum+sha256:" + hex.EncodeToString(h.Sum(nil))
 	Debugf("checksum processed: %s", checksum)
 	return checksum
 }