diff --git a/storage/storage_dest.go b/storage/storage_dest.go
index 0cd4392a..56f16461 100644
--- a/storage/storage_dest.go
+++ b/storage/storage_dest.go
@@ -279,7 +279,7 @@ func (s *storageImageDestination) PutBlobPartial(ctx context.Context, chunkAcces
                blobInfo:      srcInfo,
        }
 
-       differ, err := chunked.GetDiffer(ctx, s.imageRef.transport.store, srcInfo.Size, srcInfo.Annotations, &fetcher)
+       differ, err := chunked.GetDiffer(ctx, s.imageRef.transport.store, &srcInfo.Digest, srcInfo.Size, srcInfo.Annotations, &fetcher)
        if err != nil {
                return private.UploadedBlob{}, err
        }