diff --git a/lib/api/initiateMultipartUpload.js b/lib/api/initiateMultipartUpload.js
index a140a360b8..764d611d73 100644
--- a/lib/api/initiateMultipartUpload.js
+++ b/lib/api/initiateMultipartUpload.js
@@ -257,10 +257,7 @@ function initiateMultipartUpload(authInfo, request, log, callback) {
             // backend, and it is thus not match the versionId of the ingested object. Thus we add extra
             // user metadata to allow OOB to allow ingestion processor to "match" the (new) restored
             // object with the existing ingested object.
-            mpuInfo.metaHeaders = {
-                ...metaHeaders,
-                'x-amz-meta-scal-version-id': putVersionId,
-            };
+            mpuInfo.metaHeaders['x-amz-meta-scal-version-id'] = putVersionId;
         }
 
         return data.initiateMPU(mpuInfo, websiteRedirectHeader, log,