diff --git a/tools/ping/client/ping.cpp b/tools/ping/client/ping.cpp
index 7f2e2a4..b83c160 100644
--- a/tools/ping/client/ping.cpp
+++ b/tools/ping/client/ping.cpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2018,  Arizona Board of Regents.
+ * Copyright (c) 2014-2019,  Arizona Board of Regents.
  *
  * This file is part of ndn-tools (Named Data Networking Essential Tools).
  * See AUTHORS.md for complete list of ndn-tools authors and contributors.
@@ -35,7 +35,6 @@
   , m_nOutstanding(0)
   , m_face(face)
   , m_scheduler(m_face.getIoService())
-  , m_nextPingEvent(m_scheduler)
 {
   if (m_options.shouldGenerateRandomSeq) {
     m_nextSeq = random::generateWord64();