diff --git a/src/route/name-prefix-table.hpp b/src/route/name-prefix-table.hpp
index b872161..532410f 100644
--- a/src/route/name-prefix-table.hpp
+++ b/src/route/name-prefix-table.hpp
@@ -28,6 +28,9 @@
   updateWithNewRoute();
 
   void
+  writeLog();
+
+  void
   print();
 
 private: