diff --git a/browsergym/experiments/src/browsergym/experiments/benchmark/utils.py b/browsergym/experiments/src/browsergym/experiments/benchmark/utils.py
index 396accaa..6fe9a00c 100644
--- a/browsergym/experiments/src/browsergym/experiments/benchmark/utils.py
+++ b/browsergym/experiments/src/browsergym/experiments/benchmark/utils.py
@@ -260,7 +260,7 @@ def run_massage(outcome_queue: mp.Queue):
             outcome_queue.put(outcome)
 
     queue = mp.Queue()
-    process = mp.Process(target=run_massage, args=queue)
+    process = mp.Process(target=run_massage, args=(queue,))
     process.start()
     process.join(timeout=timeout)