Fix nasty typo
diff --git a/Lib/queue.py b/Lib/queue.py
index 31ec46b..ba608c5 100644
--- a/Lib/queue.py
+++ b/Lib/queue.py
@@ -3,7 +3,7 @@
 try:
     import threading
 except ImportError:
-    import dummythreading as threading
+    import dummy_threading as threading
 from collections import deque
 from heapq import heappush, heappop
 from time import time