diff --git a/jpacrepo_uploader/uploader.py b/jpacrepo_uploader/uploader.py
index 7cf81d4..1bfec9a 100644
--- a/jpacrepo_uploader/uploader.py
+++ b/jpacrepo_uploader/uploader.py
@@ -234,7 +234,7 @@ class JpacrepoClient:
             kwargs = dict(
                 width=64,
                 max=upload_size,
-                message=f'({i}/{len(files)}) {file.name}',
+                message=f'({i + 1}/{len(files)}) {file.name}',
                 start_ts=start_ts
             )