diff --git a/property_store.h b/property_store.h
index 8bc4277..602d2ef 100644
--- a/property_store.h
+++ b/property_store.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
+// 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.
 
@@ -117,6 +117,8 @@
 
   void RegisterDerivedBool(const std::string &name,
                            const BoolAccessor &accessor);
+  void RegisterDerivedInt32(const std::string &name,
+                            const Int32Accessor &accessor);
   void RegisterDerivedString(const std::string &name,
                              const StringAccessor &accessor);
   void RegisterDerivedStringmaps(const std::string &name,