diff --git a/src/util/regex/regex-backref-manager.cpp b/src/util/regex/regex-backref-manager.cpp
new file mode 100644
index 0000000..23c4a0a
--- /dev/null
+++ b/src/util/regex/regex-backref-manager.cpp
@@ -0,0 +1,44 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2013-2017 Regents of the University of California.
+ *
+ * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
+ *
+ * ndn-cxx library is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free Software
+ * Foundation, either version 3 of the License, or (at your option) any later version.
+ *
+ * ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+ * PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License and GNU Lesser
+ * General Public License along with ndn-cxx, e.g., in COPYING.md file.  If not, see
+ * <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
+ *
+ * @author Yingdi Yu <http://irl.cs.ucla.edu/~yingdi/>
+ */
+
+#include "regex-backref-manager.hpp"
+
+namespace ndn {
+
+size_t
+RegexBackrefManager::pushRef(const shared_ptr<RegexMatcher>& matcher)
+{
+  auto last = m_backrefs.size();
+  m_backrefs.emplace_back(matcher);
+  return last;
+}
+
+shared_ptr<RegexMatcher>
+RegexBackrefManager::getBackref(size_t i) const
+{
+  auto backref = m_backrefs[i].lock();
+  BOOST_ASSERT(backref != nullptr);
+  return backref;
+}
+
+} // namespace ndn