diff --git a/src/privmsgs.py b/src/privmsgs.py
index d57af354e..d00f2ae61 100644
--- a/src/privmsgs.py
+++ b/src/privmsgs.py
@@ -163,8 +163,11 @@ def urlSnarfer(f):
         q = getattr(self, '_snarfedUrls', None)
         if q is None:
             q = structures.smallqueue()
+            self._snarfedUrls = q
+        #debug.printf('before pruning: %r' % q)
         while q and q[0][2] < cutoff:
             q.dequeue()
+        #debug.printf('after pruning: %r' % q)
         url = match.group(0)
         if any(lambda t: t[0] == url and t[1] == msg.args[0], q) and \
                not world.testing: