diff --git a/daemon/face/websocketpp.hpp b/daemon/face/websocketpp.hpp
index 1e934b6..f590bd1 100644
--- a/daemon/face/websocketpp.hpp
+++ b/daemon/face/websocketpp.hpp
@@ -1,12 +1,12 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil -*- */
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /**
- * Copyright (c) 2014  Regents of the University of California,
- *                     Arizona Board of Regents,
- *                     Colorado State University,
- *                     University Pierre & Marie Curie, Sorbonne University,
- *                     Washington University in St. Louis,
- *                     Beijing Institute of Technology,
- *                     The University of Memphis
+ * Copyright (c) 2014,  Regents of the University of California,
+ *                      Arizona Board of Regents,
+ *                      Colorado State University,
+ *                      University Pierre & Marie Curie, Sorbonne University,
+ *                      Washington University in St. Louis,
+ *                      Beijing Institute of Technology,
+ *                      The University of Memphis
  *
  * This file is part of NFD (Named Data Networking Forwarding Daemon).
  * See AUTHORS.md for complete list of NFD authors and contributors.
@@ -26,6 +26,10 @@
 #ifndef NFD_DAEMON_FACE_WEBSOCKETPP_HPP
 #define NFD_DAEMON_FACE_WEBSOCKETPP_HPP
 
+#ifndef HAVE_WEBSOCKET
+#error "This file must not be included when WebSocket Face support is disabled"
+#endif
+
 // suppress websocketpp warnings
 #pragma GCC system_header
 #pragma clang system_header