diff --git a/mock_process_killer.cc b/mock_process_killer.cc
new file mode 100644
index 0000000..b3c3fb0
--- /dev/null
+++ b/mock_process_killer.cc
@@ -0,0 +1,13 @@
+// Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "shill/mock_process_killer.h"
+
+namespace shill {
+
+MockProcessKiller::MockProcessKiller() {}
+
+MockProcessKiller::~MockProcessKiller() {}
+
+}  // namespace shill