diff --git a/gui/osx-auto-update-sparkle.hpp b/gui/osx-auto-update-sparkle.hpp
new file mode 100644
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+++ b/gui/osx-auto-update-sparkle.hpp
@@ -0,0 +1,54 @@
+/* -*- 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 ChronoShare, a decentralized file sharing application over NDN.
+ *
+ * ChronoShare is free software: you can redistribute it and/or modify it under the terms
+ * of the GNU General Public License as published by the Free Software Foundation, either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * ChronoShare 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 General Public License for more details.
+ *
+ * You should have received copies of the GNU General Public License along with
+ * ChronoShare, e.g., in COPYING.md file.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * See AUTHORS.md for complete list of ChronoShare authors and contributors.
+ */
+
+#ifndef NCC_OSX_AUTO_UPDATE_SPARKLE_HPP
+#define NCC_OSX_AUTO_UPDATE_SPARKLE_HPP
+
+#include "core/chronoshare-config.hpp"
+
+#ifndef OSX_BUILD
+#error "Cannot be included for non-OSX build"
+#endif // OSX_BUILD
+
+#include <string>
+#include <ndn-cxx/util/backports.hpp>
+
+namespace ndn {
+namespace chronoshare {
+
+class OsxAutoUpdateSparkle
+{
+public:
+  OsxAutoUpdateSparkle(const std::string& updateUrl);
+
+  ~OsxAutoUpdateSparkle();
+
+  void
+  checkForUpdates();
+
+private:
+  class Impl;
+  unique_ptr<Impl> m_impl;
+};
+
+} // namespace chronoshare
+} // namespace ndn
+
+#endif // NCC_OSX_AUTO_UPDATE_SPARKLE_HPP