diff --git a/model/ccnx-name-components.cc b/model/ccnx-name-components.cc
index a79b6bb..a0a12da 100644
--- a/model/ccnx-name-components.cc
+++ b/model/ccnx-name-components.cc
@@ -50,6 +50,13 @@
   is >> *this;
 }
 
+CcnxNameComponents::CcnxNameComponents (const char *prefix)
+{
+  NS_ASSERT (prefix != 0);
+  
+  istringstream is (prefix);
+  is >> *this;
+}
 
 const std::list<std::string> &
 CcnxNameComponents::GetComponents () const
diff --git a/model/ccnx-name-components.h b/model/ccnx-name-components.h
index eb4f8c1..622f51f 100644
--- a/model/ccnx-name-components.h
+++ b/model/ccnx-name-components.h
@@ -68,6 +68,13 @@
    * @param[in] prefix A string representation of a prefix
    */
   CcnxNameComponents (const std::string &prefix);
+
+  /**
+   * @brief Constructor
+   * Creates a prefix from the string (string is parsed using operator>>)
+   * @param[in] prefix A string representation of a prefix
+   */
+  CcnxNameComponents (const char *prefix);
   
   /**
    * \brief Generic Add method
diff --git a/model/ccnx-pit-entry.cc b/model/ccnx-pit-entry.cc
index 4b075ab..73f966c 100644
--- a/model/ccnx-pit-entry.cc
+++ b/model/ccnx-pit-entry.cc
@@ -41,10 +41,10 @@
                             Ptr<CcnxFibEntry> fibEntry)
   : m_container (container)
   , m_prefix (header->GetNamePtr ())
+  , m_fibEntry (fibEntry)
   , m_expireTime (Simulator::Now () + (!header->GetInterestLifetime ().IsZero ()?
                                        header->GetInterestLifetime ():
                                        Seconds (1.0)))
-  , m_fibEntry (fibEntry)
   , m_maxRetxCount (0)
 {
   // note that if interest lifetime is not set, the behavior is undefined
diff --git a/model/ccnx-pit-entry.h b/model/ccnx-pit-entry.h
index beda5bb..1ccb6b4 100644
--- a/model/ccnx-pit-entry.h
+++ b/model/ccnx-pit-entry.h
@@ -84,7 +84,7 @@
  *
  * All set-methods are virtual, in case index rearrangement is necessary in the derived classes
  */
-struct CcnxPitEntry : SimpleRefCount<CcnxPitEntry>
+class CcnxPitEntry : public SimpleRefCount<CcnxPitEntry>
 {
 public:
   typedef std::set< CcnxPitEntryIncomingFace > in_container; ///< @brief incoming faces container type