Fix build against current ndn-cxx

Change-Id: I9f2e06204ee190d507c76aac7ead09ad8e4d5009
diff --git a/src/detail/profile-storage.cpp b/src/detail/profile-storage.cpp
index 7ae3c08..949309a 100644
--- a/src/detail/profile-storage.cpp
+++ b/src/detail/profile-storage.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/**
- * Copyright (c) 2017-2020, Regents of the University of California.
+/*
+ * Copyright (c) 2017-2021, Regents of the University of California.
  *
  * This file is part of ndncert, a certificate management system based on NDN.
  *
@@ -19,7 +19,9 @@
  */
 
 #include "detail/profile-storage.hpp"
+
 #include <boost/filesystem.hpp>
+#include <boost/property_tree/json_parser.hpp>
 
 namespace ndn {
 namespace ndncert {