diff --git a/rendernode.py b/rendernode.py
index 43b175d..74d7c46 100644
--- a/rendernode.py
+++ b/rendernode.py
@@ -92,7 +92,8 @@ class RenderNode(object):
 
         # queue for receiving interesting events from the renderer
         # (like the discovery of signs!
-        self.poi_q = multiprocessing.Queue()
+        self.manager = multiprocessing.Manager()
+        self.poi_q = self.manager.Queue()
         
         self.world = world