diff --git a/include/ndn-cpp/forwarding-entry.hpp b/include/ndn-cpp/forwarding-entry.hpp
index 662409a..e9a3f47 100644
--- a/include/ndn-cpp/forwarding-entry.hpp
+++ b/include/ndn-cpp/forwarding-entry.hpp
@@ -22,9 +22,9 @@
 public:    
   ForwardingEntry(const std::string& action,
                   const Name& prefix,
-                  int faceId,
-                  const ForwardingFlags& forwardingFlags,
-                  int freshnessPeriod) 
+                  int faceId = -1,
+                  const ForwardingFlags& forwardingFlags = ForwardingFlags(),
+                  int freshnessPeriod = -1) 
     : action_(action)
     , prefix_(prefix)
     , faceId_(faceId)
diff --git a/include/ndn-cpp/node.hpp b/include/ndn-cpp/node.hpp
index bbf89fd..b5e4e97 100644
--- a/include/ndn-cpp/node.hpp
+++ b/include/ndn-cpp/node.hpp
@@ -330,6 +330,8 @@
   PendingInterestTable pendingInterestTable_;
   RegisteredPrefixTable registeredPrefixTable_;
   Interest ndndIdFetcherInterest_;
+
+  int64_t faceId_; // internal face ID (needed for prefix de-registration)
   Buffer ndndId_;
 };