diff --git a/server/backup/src/backup.ts b/server/backup/src/backup.ts
index b0b31db15a..4e67fad498 100644
--- a/server/backup/src/backup.ts
+++ b/server/backup/src/backup.ts
@@ -1840,7 +1840,7 @@ export async function restore (
                     if (Number.isNaN(sz) || sz !== bf.length) {
                       sz = bf.length
                     }
-                    void blobClient.upload(ctx, doc._id, doc.size, doc.contentType, bf).then(() => {
+                    void blobClient.upload(ctx, doc._id, sz, doc.contentType, bf).then(() => {
                       void sendChunk(doc, bf.length).finally(() => {
                         requiredDocs.delete(doc._id)
                         printUploaded('upload', bf.length)