diff --git a/model/fib/ndn-fib-entry.h b/model/fib/ndn-fib-entry.h
index a98dc66..214b0eb 100644
--- a/model/fib/ndn-fib-entry.h
+++ b/model/fib/ndn-fib-entry.h
@@ -171,6 +171,9 @@
 class Entry : public Object
 {
 public:
+  typedef Entry base_type;
+  
+public:
   class NoFaces {}; ///< @brief Exception class for the case when FIB entry is not found
   
   /**