diff --git a/dbos/_queue.py b/dbos/_queue.py
index 5d981a75..fe344b3e 100644
--- a/dbos/_queue.py
+++ b/dbos/_queue.py
@@ -36,6 +36,7 @@ def __init__(
         name: str,
         concurrency: Optional[int] = None,
         limiter: Optional[QueueRateLimit] = None,
+        *,  # Disable positional arguments from here on
         worker_concurrency: Optional[int] = None,
     ) -> None:
         if (