diff --git a/internal/grpc/services/storageprovider/storageprovider.go b/internal/grpc/services/storageprovider/storageprovider.go
index d87b5d81c9c..bad19304f1d 100644
--- a/internal/grpc/services/storageprovider/storageprovider.go
+++ b/internal/grpc/services/storageprovider/storageprovider.go
@@ -453,8 +453,6 @@ func (s *service) InitiateFileUpload(ctx context.Context, req *provider.Initiate
 		}, nil
 	}
 
-	// extract all metadata from (custom) headers
-	// TODO(lopresti) They are defined in the http/services/ownclod/ocdav package (webdav.go) but duplicated here
 	metadata := map[string]string{}
 	var uploadLength int64
 	if req.Opaque != nil && req.Opaque.Map != nil {
@@ -475,13 +473,6 @@ func (s *service) InitiateFileUpload(ctx context.Context, req *provider.Initiate
 		if req.Opaque.Map["X-OC-Mtime"] != nil {
 			metadata["mtime"] = string(req.Opaque.Map["X-OC-Mtime"].Value)
 		}
-		// in addition to the lock_id we may have the lock holder
-		if req.Opaque.Map["Lock-Holder"] != nil {
-			metadata["lockholder"] = string(req.Opaque.Map["Lock-Holder"].Value)
-		}
-	}
-	if req.LockId != "" {
-		metadata["lockid"] = req.LockId
 	}
 	uploadIDs, err := s.storage.InitiateUpload(ctx, newRef, uploadLength, metadata)
 	if err != nil {
diff --git a/internal/http/services/owncloud/ocdav/put.go b/internal/http/services/owncloud/ocdav/put.go
index 75f97fb4d16..e9a000b1bf4 100644
--- a/internal/http/services/owncloud/ocdav/put.go
+++ b/internal/http/services/owncloud/ocdav/put.go
@@ -186,13 +186,6 @@ func (s *svc) handlePut(ctx context.Context, w http.ResponseWriter, r *http.Requ
 		w.Header().Set(HeaderOCMtime, "accepted")
 	}
 
-	if lockholder := r.Header.Get(HeaderLockHolder); lockholder != "" {
-		opaqueMap[HeaderLockHolder] = &typespb.OpaqueEntry{
-			Decoder: "plain",
-			Value:   []byte(lockholder),
-		}
-	}
-
 	// curl -X PUT https://demo.owncloud.com/remote.php/webdav/testcs.bin -u demo:demo -d '123' -v -H 'OC-Checksum: SHA1:40bd001563085fc35165329ea1ff5c5ecbdbbeef'
 
 	var cparts []string
@@ -278,6 +271,12 @@ func (s *svc) handlePut(ctx context.Context, w http.ResponseWriter, r *http.Requ
 		return
 	}
 	httpReq.Header.Set(datagateway.TokenTransportHeader, token)
+	if lockid := r.Header.Get(HeaderLockID); lockid != "" {
+		httpReq.Header.Set(HeaderLockID, lockid)
+	}
+	if lockholder := r.Header.Get(HeaderLockHolder); lockholder != "" {
+		httpReq.Header.Set(HeaderLockHolder, lockholder)
+	}
 
 	httpRes, err := s.client.Do(httpReq)
 	if err != nil {
diff --git a/internal/http/services/owncloud/ocdav/webdav.go b/internal/http/services/owncloud/ocdav/webdav.go
index c2e2d58fd53..06a1480156c 100644
--- a/internal/http/services/owncloud/ocdav/webdav.go
+++ b/internal/http/services/owncloud/ocdav/webdav.go
@@ -76,7 +76,8 @@ const (
 	HeaderOCMtime              = "X-OC-Mtime"
 	HeaderExpectedEntityLength = "X-Expected-Entity-Length"
 	HeaderTransferAuth         = "TransferHeaderAuthorization"
-	HeaderLockHolder           = "Lock-Holder"
+	HeaderLockID               = "X-Lock-Id"
+	HeaderLockHolder           = "X-Lock-Holder"
 )
 
 // WebDavHandler implements a dav endpoint.
diff --git a/pkg/ocm/storage/outcoming/ocm.go b/pkg/ocm/storage/outcoming/ocm.go
index 337050c3407..608ccea2117 100644
--- a/pkg/ocm/storage/outcoming/ocm.go
+++ b/pkg/ocm/storage/outcoming/ocm.go
@@ -34,6 +34,7 @@ import (
 	provider "github.com/cs3org/go-cs3apis/cs3/storage/provider/v1beta1"
 	typespb "github.com/cs3org/go-cs3apis/cs3/types/v1beta1"
 	"github.com/cs3org/reva/internal/http/services/datagateway"
+	"github.com/cs3org/reva/internal/http/services/owncloud/ocdav"
 	"github.com/cs3org/reva/internal/http/services/owncloud/ocs/conversions"
 
 	"github.com/cs3org/reva/pkg/appctx"
@@ -399,20 +400,9 @@ func (d *driver) Upload(ctx context.Context, ref *provider.Reference, content io
 	}
 
 	return d.unwrappedOpFromShareCreator(ctx, share, rel, func(ctx context.Context, newRef *provider.Reference) error {
-		opaqueMap := map[string]*typespb.OpaqueEntry{}
-		if lockholder := metadata["lockholder"]; lockholder != "" {
-			opaqueMap["Lock-Holder"] = &typespb.OpaqueEntry{
-				Decoder: "plain",
-				Value:   []byte(lockholder),
-			}
-		}
 		initRes, err := d.gateway.InitiateFileUpload(ctx, &provider.InitiateFileUploadRequest{
 			Ref:    newRef,
-			LockId: metadata["lockid"],
-			Opaque: &typespb.Opaque{
-				Map: opaqueMap,
-			},
-		})
+			LockId: metadata["lockid"]})
 		switch {
 		case err != nil:
 			return err
@@ -431,6 +421,12 @@ func (d *driver) Upload(ctx context.Context, ref *provider.Reference, content io
 		}
 
 		httpReq.Header.Set(datagateway.TokenTransportHeader, token)
+		if lockid := metadata["lockid"]; lockid != "" {
+			httpReq.Header.Set(ocdav.HeaderLockID, lockid)
+		}
+		if lockholder := metadata["lockholder"]; lockholder != "" {
+			httpReq.Header.Set(ocdav.HeaderLockHolder, lockholder)
+		}
 
 		httpRes, err := httpclient.New().Do(httpReq)
 		if err != nil {
diff --git a/pkg/rhttp/datatx/manager/simple/simple.go b/pkg/rhttp/datatx/manager/simple/simple.go
index 8ce580e61a1..b1b489a6760 100644
--- a/pkg/rhttp/datatx/manager/simple/simple.go
+++ b/pkg/rhttp/datatx/manager/simple/simple.go
@@ -23,6 +23,7 @@ import (
 	"net/http"
 
 	provider "github.com/cs3org/go-cs3apis/cs3/storage/provider/v1beta1"
+	"github.com/cs3org/reva/internal/http/services/owncloud/ocdav"
 	"github.com/cs3org/reva/pkg/appctx"
 	"github.com/cs3org/reva/pkg/errtypes"
 	"github.com/cs3org/reva/pkg/rhttp/datatx"
@@ -76,6 +77,12 @@ func (m *manager) Handler(fs storage.FS) (http.Handler, error) {
 
 			ref := &provider.Reference{Path: fn}
 			metadata := map[string]string{}
+			if lockid := r.Header.Get(ocdav.HeaderLockID); lockid != "" {
+				metadata["lockid"] = lockid
+			}
+			if lockholder := r.Header.Get(ocdav.HeaderLockHolder); lockholder != "" {
+				metadata["lockholder"] = lockholder
+			}
 
 			err := fs.Upload(ctx, ref, r.Body, metadata)
 			switch v := err.(type) {
diff --git a/pkg/rhttp/datatx/manager/spaces/spaces.go b/pkg/rhttp/datatx/manager/spaces/spaces.go
index 03ce1cd7991..4f95b47f107 100644
--- a/pkg/rhttp/datatx/manager/spaces/spaces.go
+++ b/pkg/rhttp/datatx/manager/spaces/spaces.go
@@ -25,6 +25,7 @@ import (
 	"strings"
 
 	provider "github.com/cs3org/go-cs3apis/cs3/storage/provider/v1beta1"
+	"github.com/cs3org/reva/internal/http/services/owncloud/ocdav"
 	"github.com/cs3org/reva/pkg/appctx"
 	"github.com/cs3org/reva/pkg/errtypes"
 	"github.com/cs3org/reva/pkg/rhttp/datatx"
@@ -97,6 +98,12 @@ func (m *manager) Handler(fs storage.FS) (http.Handler, error) {
 				Path:       fn,
 			}
 			metadata := map[string]string{}
+			if lockid := r.Header.Get(ocdav.HeaderLockID); lockid != "" {
+				metadata["lockid"] = lockid
+			}
+			if lockholder := r.Header.Get(ocdav.HeaderLockHolder); lockholder != "" {
+				metadata["lockholder"] = lockholder
+			}
 
 			err = fs.Upload(ctx, ref, r.Body, metadata)
 			switch v := err.(type) {