diff --git a/src/interest-container.hpp b/src/interest-container.hpp
index de7043a..56c08ce 100644
--- a/src/interest-container.hpp
+++ b/src/interest-container.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil -*- */
 /*
- * Copyright (c) 2012-2017 University of California, Los Angeles
+ * Copyright (c) 2012-2019 University of California, Los Angeles
  *
  * This file is part of ChronoSync, synchronization library for distributed realtime
  * applications for NDN.
@@ -50,8 +50,8 @@
 public:
   const Interest interest;
   ConstBufferPtr digest;
-  bool           isUnknown;
-  ndn::EventId   expirationEvent;
+  bool isUnknown;
+  ndn::scheduler::EventId expirationEvent;
 };
 
 using UnsatisfiedInterestPtr = shared_ptr<UnsatisfiedInterest>;