diff --git a/hgext/remotefilelog/basestore.py b/hgext/remotefilelog/basestore.py
--- a/hgext/remotefilelog/basestore.py
+++ b/hgext/remotefilelog/basestore.py
@@ -305,8 +305,7 @@
         cachepath = self._path
 
         # prune cache
-        import Queue
-        queue = Queue.PriorityQueue()
+        queue = pycompat.queue.PriorityQueue()
         originalsize = 0
         size = 0
         count = 0