diff --git a/daemon/fw/forwarder-counters.hpp b/daemon/fw/forwarder-counters.hpp
index f526b86..d6b2fde 100644
--- a/daemon/fw/forwarder-counters.hpp
+++ b/daemon/fw/forwarder-counters.hpp
@@ -1,6 +1,6 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
 /*
- * Copyright (c) 2014-2019,  Regents of the University of California,
+ * Copyright (c) 2014-2020,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
  *                           University Pierre & Marie Curie, Sorbonne University,
@@ -30,7 +30,7 @@
 
 namespace nfd {
 
-/** \brief counters provided by Forwarder
+/** \brief Counters provided by Forwarder
  */
 class ForwarderCounters
 {
@@ -41,8 +41,10 @@
   PacketCounter nOutData;
   PacketCounter nInNacks;
   PacketCounter nOutNacks;
+
   PacketCounter nSatisfiedInterests;
   PacketCounter nUnsatisfiedInterests;
+  PacketCounter nUnsolicitedData;
 
   PacketCounter nCsHits;
   PacketCounter nCsMisses;