diff --git a/neon_client/client.py b/neon_client/client.py
index 5aa0452..5ab20e6 100644
--- a/neon_client/client.py
+++ b/neon_client/client.py
@@ -123,7 +123,7 @@ def _request(
     def _url_join(self, *args):
         """Join a list of URL components into a single URL."""
 
-        return "/".join(*args)
+        return "/".join(args)
 
     @classmethod
     def from_environ(cls):