diff --git a/ndn-cpp/node.cpp b/ndn-cpp/node.cpp
index b7c076e..0309174 100644
--- a/ndn-cpp/node.cpp
+++ b/ndn-cpp/node.cpp
@@ -135,7 +135,7 @@
 
 void 
 Node::registerPrefix
-  (const Name& prefix, const OnInterest& onInterest, const OnRegisterFailed& onRegisterFailed, int flags, WireFormat& wireFormat)
+  (const Name& prefix, const OnInterest& onInterest, const OnRegisterFailed& onRegisterFailed, const ForwardingFlags& flags, WireFormat& wireFormat)
 {
   if (ndndId_.size() == 0) {
     // First fetch the ndndId of the connected hub.
@@ -173,7 +173,7 @@
 void 
 Node::registerPrefixHelper
   (const shared_ptr<const Name>& prefix, const OnInterest& onInterest, const OnRegisterFailed& onRegisterFailed, 
-   int flags, WireFormat& wireFormat)
+   const ForwardingFlags& flags, WireFormat& wireFormat)
 {
   // Create a ForwardingEntry.
   ForwardingEntry forwardingEntry("selfreg", *prefix, PublisherPublicKeyDigest(), -1, flags, 2147483647);