diff --git a/spcd/util.py b/spcd/util.py
index 9bae59f..9bfc4b7 100644
--- a/spcd/util.py
+++ b/spcd/util.py
@@ -9,7 +9,7 @@ from rwx.log import stream as log
 
 def add_url_path(url: str, extra_path: str) -> str:
     parts = urlparse(url)
-    parts._replace(path=Path(parts.path) / extra_path)
+    parts._replace(path=str(Path(parts.path) / extra_path))
     return urlunparse(parts)