diff --git a/beetsplug/web/__init__.py b/beetsplug/web/__init__.py
index 810de8718..e7b9ec81f 100644
--- a/beetsplug/web/__init__.py
+++ b/beetsplug/web/__init__.py
@@ -206,7 +206,7 @@ def item_file(item_id):
     response = flask.send_file(
         util.py3_path(item.path),
         as_attachment=True,
-        attachment_filename=os.path.basename(item.path),
+        attachment_filename=os.path.basename(util.py3_path(item.path)),
     )
     response.headers['Content-Length'] = os.path.getsize(item.path)
     return response