diff --git a/model/pit/ccnx-pit-impl.cc b/model/pit/ccnx-pit-impl.cc
index c57a44c..222b3c9 100644
--- a/model/pit/ccnx-pit-impl.cc
+++ b/model/pit/ccnx-pit-impl.cc
@@ -243,7 +243,7 @@
   //               i_time.begin ()->GetExpireTime () << "s abs time");
   
   m_cleanEvent = Simulator::Schedule (nextEvent,
-                                      &CcnxPitImpl::CleanExpired, this);
+                                      &CcnxPitImpl<Policy>::CleanExpired, this);
 }
 
 template<class Policy>
@@ -270,6 +270,7 @@
   if (super::getPolicy ().size ())
     {
       NS_LOG_DEBUG ("Size: " << super::getPolicy ().size ());
+      NS_LOG_DEBUG ("i_time size: " << i_time.size ());
     }
   RescheduleCleaning ();
 }
diff --git a/model/pit/ccnx-pit-impl.h b/model/pit/ccnx-pit-impl.h
index 94709f3..6754dcd 100644
--- a/model/pit/ccnx-pit-impl.h
+++ b/model/pit/ccnx-pit-impl.h
@@ -118,7 +118,7 @@
 
   // indexes
   typedef
-  boost::intrusive::set<entry,
+  boost::intrusive::multiset<entry,
                         boost::intrusive::compare < TimestampIndex< entry > >,
                         boost::intrusive::member_hook< entry,
                                                        boost::intrusive::set_member_hook<>,