diff --git a/internal/http/services/owncloud/ocdav/propfind.go b/internal/http/services/owncloud/ocdav/propfind.go
index 81fc9443d5..315f1bc0eb 100644
--- a/internal/http/services/owncloud/ocdav/propfind.go
+++ b/internal/http/services/owncloud/ocdav/propfind.go
@@ -293,8 +293,7 @@ func (s *svc) mdToPropResponse(ctx context.Context, pf *propfindXML, md *provide
 			// etags must be enclosed in double quotes and cannot contain them.
 			// See https://tools.ietf.org/html/rfc7232#section-2.3 for details
 			// TODO(jfd) handle weak tags that start with 'W/'
-			etag := fmt.Sprintf("\"%s\"", strings.Trim(md.Etag, "\""))
-			response.Propstat[0].Prop = append(response.Propstat[0].Prop, s.newProp("d:getetag", etag))
+			response.Propstat[0].Prop = append(response.Propstat[0].Prop, s.newProp("d:getetag", md.Etag))
 		}
 
 		if md.PermissionSet != nil {
diff --git a/pkg/storage/fs/eosgrpc/eosgrpc.go b/pkg/storage/fs/eosgrpc/eosgrpc.go
index 4b0f38e19c..7e63e862ee 100644
--- a/pkg/storage/fs/eosgrpc/eosgrpc.go
+++ b/pkg/storage/fs/eosgrpc/eosgrpc.go
@@ -1372,7 +1372,7 @@ func (fs *eosfs) convert(ctx context.Context, eosFileInfo *eosclientgrpc.FileInf
 		Id:            &provider.ResourceId{OpaqueId: fmt.Sprintf("%d", eosFileInfo.Inode)},
 		Path:          path,
 		Owner:         &userpb.UserId{OpaqueId: username},
-		Etag:          eosFileInfo.ETag,
+		Etag:          fmt.Sprintf("\"%s\"", strings.Trim(eosFileInfo.ETag, "\"")),
 		MimeType:      mime.Detect(eosFileInfo.IsDir, path),
 		Size:          size,
 		PermissionSet: &provider.ResourcePermissions{ListContainer: true, CreateContainer: true},
diff --git a/pkg/storage/fs/owncloud/owncloud.go b/pkg/storage/fs/owncloud/owncloud.go
index 0d7ccaff2d..4f2509c03a 100644
--- a/pkg/storage/fs/owncloud/owncloud.go
+++ b/pkg/storage/fs/owncloud/owncloud.go
@@ -1010,7 +1010,8 @@ func (fs *ocfs) SetArbitraryMetadata(ctx context.Context, ref *provider.Referenc
 		// TODO(jfd) any other metadata that is interesting? fileid?
 		if val, ok := md.Metadata["etag"]; ok {
 			etag := calcEtag(ctx, fi)
-			if etag == md.Metadata["etag"] {
+			val = fmt.Sprintf("\"%s\"", strings.Trim(val, "\""))
+			if etag == val {
 				log.Debug().
 					Str("np", np).
 					Str("etag", val).
diff --git a/pkg/storage/fs/owncloud/owncloud_unix.go b/pkg/storage/fs/owncloud/owncloud_unix.go
index 26bb3b0cea..5530c453e7 100755
--- a/pkg/storage/fs/owncloud/owncloud_unix.go
+++ b/pkg/storage/fs/owncloud/owncloud_unix.go
@@ -26,6 +26,7 @@ import (
 	"encoding/binary"
 	"fmt"
 	"os"
+	"strings"
 	"syscall"
 
 	"github.com/cs3org/reva/pkg/appctx"
@@ -62,5 +63,6 @@ func calcEtag(ctx context.Context, fi os.FileInfo) string {
 	if err != nil {
 		log.Error().Err(err).Msg("error writing size")
 	}
-	return fmt.Sprintf(`"%x"`, h.Sum(nil))
+	etag := fmt.Sprintf(`"%x"`, h.Sum(nil))
+	return fmt.Sprintf("\"%s\"", strings.Trim(etag, "\""))
 }
diff --git a/pkg/storage/fs/owncloud/owncloud_windows.go b/pkg/storage/fs/owncloud/owncloud_windows.go
index 82cbd911b6..e041b6d028 100644
--- a/pkg/storage/fs/owncloud/owncloud_windows.go
+++ b/pkg/storage/fs/owncloud/owncloud_windows.go
@@ -26,6 +26,7 @@ import (
 	"encoding/binary"
 	"fmt"
 	"os"
+	"strings"
 
 	"github.com/cs3org/reva/pkg/appctx"
 )
@@ -48,5 +49,6 @@ func calcEtag(ctx context.Context, fi os.FileInfo) string {
 	if err != nil {
 		log.Error().Err(err).Msg("error writing size")
 	}
-	return fmt.Sprintf(`"%x"`, h.Sum(nil))
+	etag := fmt.Sprintf(`"%x"`, h.Sum(nil))
+	return fmt.Sprintf("\"%s\"", strings.Trim(etag, "\""))
 }
diff --git a/pkg/storage/utils/eosfs/eosfs.go b/pkg/storage/utils/eosfs/eosfs.go
index 3d5fb86eba..f6f6ac7a7e 100644
--- a/pkg/storage/utils/eosfs/eosfs.go
+++ b/pkg/storage/utils/eosfs/eosfs.go
@@ -1187,7 +1187,7 @@ func (fs *eosfs) convert(ctx context.Context, eosFileInfo *eosclient.FileInfo) *
 		Id:            &provider.ResourceId{OpaqueId: fmt.Sprintf("%d", eosFileInfo.Inode)},
 		Path:          path,
 		Owner:         &userpb.UserId{OpaqueId: username},
-		Etag:          eosFileInfo.ETag,
+		Etag:          fmt.Sprintf("\"%s\"", strings.Trim(eosFileInfo.ETag, "\"")),
 		MimeType:      mime.Detect(eosFileInfo.IsDir, path),
 		Size:          size,
 		PermissionSet: &provider.ResourcePermissions{ListContainer: true, CreateContainer: true},
diff --git a/pkg/storage/utils/localfs/localfs_unix.go b/pkg/storage/utils/localfs/localfs_unix.go
index 4ed33b83cb..3ec0889338 100644
--- a/pkg/storage/utils/localfs/localfs_unix.go
+++ b/pkg/storage/utils/localfs/localfs_unix.go
@@ -26,6 +26,7 @@ import (
 	"encoding/binary"
 	"fmt"
 	"os"
+	"strings"
 	"syscall"
 
 	"github.com/cs3org/reva/pkg/appctx"
@@ -60,5 +61,6 @@ func calcEtag(ctx context.Context, fi os.FileInfo) string {
 	if err != nil {
 		log.Error().Err(err).Msg("error writing size")
 	}
-	return fmt.Sprintf(`"%x"`, h.Sum(nil))
+	etag := fmt.Sprintf(`"%x"`, h.Sum(nil))
+	return fmt.Sprintf("\"%s\"", strings.Trim(etag, "\""))
 }
diff --git a/pkg/storage/utils/localfs/localfs_windows.go b/pkg/storage/utils/localfs/localfs_windows.go
index fef8fa2e1f..1308d9390c 100644
--- a/pkg/storage/utils/localfs/localfs_windows.go
+++ b/pkg/storage/utils/localfs/localfs_windows.go
@@ -26,6 +26,7 @@ import (
 	"encoding/binary"
 	"fmt"
 	"os"
+	"strings"
 
 	"github.com/cs3org/reva/pkg/appctx"
 )
@@ -48,5 +49,6 @@ func calcEtag(ctx context.Context, fi os.FileInfo) string {
 	if err != nil {
 		log.Error().Err(err).Msg("error writing size")
 	}
-	return fmt.Sprintf(`"%x"`, h.Sum(nil))
+	etag := fmt.Sprintf(`"%x"`, h.Sum(nil))
+	return fmt.Sprintf("\"%s\"", strings.Trim(etag, "\""))
 }