diff --git a/src/route/name-prefix-table-entry.hpp b/src/route/name-prefix-table-entry.hpp
index 13a31ea..b42d396 100644
--- a/src/route/name-prefix-table-entry.hpp
+++ b/src/route/name-prefix-table-entry.hpp
@@ -66,6 +66,9 @@
   void
   addRoutingTableEntry(RoutingTableEntry& rte);
 
+  void
+  writeLog();
+
 private:
   ndn::Name m_namePrefix;
   std::list<RoutingTableEntry> m_rteList;