diff --git a/daemon/mgmt/face-manager.hpp b/daemon/mgmt/face-manager.hpp
index db2e5aa..8e72b9a 100644
--- a/daemon/mgmt/face-manager.hpp
+++ b/daemon/mgmt/face-manager.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2021,  Regents of the University of California,
+ * Copyright (c) 2014-2024,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -30,6 +30,8 @@
 #include "face/face.hpp"
 #include "face/face-system.hpp"
 
+#include <map>
+
 namespace nfd {
 
 /**