diff --git a/Lib/test/test_queue.py b/Lib/test/test_queue.py
index b3f24dff517..66977e64f83 100644
--- a/Lib/test/test_queue.py
+++ b/Lib/test/test_queue.py
@@ -251,7 +251,7 @@ def QueueJoinTest(q):
         q.put(None)         # instruct the threads to close
     q.join()                # verify that you can join twice
 
-def QueueTaskDoneTest(q)
+def QueueTaskDoneTest(q):
     try:
         q.task_done()
     except ValueError: