diff --git a/pkg/jmap/jmap_api_blob.go b/pkg/jmap/jmap_api_blob.go
index 2266c1d107..8c1c37ac30 100644
--- a/pkg/jmap/jmap_api_blob.go
+++ b/pkg/jmap/jmap_api_blob.go
@@ -44,7 +44,7 @@ func (j *Client) GetBlobMetadata(accountId string, session *Session, ctx context
 }
 
 type UploadedBlob struct {
-	Id     string `json:"id"`
+	BlobId string `json:"blobId"`
 	Size   int    `json:"size"`
 	Type   string `json:"type"`
 	Sha512 string `json:"sha:512"`
@@ -133,7 +133,7 @@ func (j *Client) UploadBlob(accountId string, session *Session, ctx context.Cont
 		get := getResponse.List[0]
 
 		return UploadedBlob{
-			Id:     upload.Id,
+			BlobId: upload.Id,
 			Size:   upload.Size,
 			Type:   upload.Type,
 			Sha512: get.DigestSha512,
diff --git a/pkg/jmap/jmap_test.go b/pkg/jmap/jmap_test.go
index a6d094afff..43056abcab 100644
--- a/pkg/jmap/jmap_test.go
+++ b/pkg/jmap/jmap_test.go
@@ -125,7 +125,7 @@ func (t TestJmapBlobClient) UploadBinary(ctx context.Context, logger *log.Logger
 	hasher := sha512.New()
 	hasher.Write(bytes)
 	return UploadedBlob{
-		Id:     uuid.NewString(),
+		BlobId: uuid.NewString(),
 		Size:   len(bytes),
 		Type:   contentType,
 		Sha512: base64.StdEncoding.EncodeToString(hasher.Sum(nil)),