diff --git a/include/boost/predef/architecture/arm.h b/include/boost/predef/architecture/arm.h
index ea3b512..7f84111 100644
--- a/include/boost/predef/architecture/arm.h
+++ b/include/boost/predef/architecture/arm.h
@@ -1,5 +1,6 @@
 /*
 Copyright Rene Rivera 2008-2013
+Copyright Franz Detro 2014
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE_1_0.txt or copy at
 http://www.boost.org/LICENSE_1_0.txt)
diff --git a/include/boost/predef/os.h b/include/boost/predef/os.h
index c74192e..628eb4f 100644
--- a/include/boost/predef/os.h
+++ b/include/boost/predef/os.h
@@ -1,5 +1,6 @@
 /*
 Copyright Rene Rivera 2008-2012
+Copyright Franz Detro 2014
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE_1_0.txt or copy at
 http://www.boost.org/LICENSE_1_0.txt)
diff --git a/include/boost/predef/os/ios.h b/include/boost/predef/os/ios.h
index a62fb49..97e1bb8 100644
--- a/include/boost/predef/os/ios.h
+++ b/include/boost/predef/os/ios.h
@@ -1,5 +1,5 @@
 /*
-Copyright Rene Rivera 2008-2013
+Copyright Franz Detro 2014
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE_1_0.txt or copy at
 http://www.boost.org/LICENSE_1_0.txt)
diff --git a/include/boost/predef/os/macos.h b/include/boost/predef/os/macos.h
index 1d34ece..0ace2f5 100644
--- a/include/boost/predef/os/macos.h
+++ b/include/boost/predef/os/macos.h
@@ -1,5 +1,6 @@
 /*
 Copyright Rene Rivera 2008-2013
+Franz Detro 2014
 Distributed under the Boost Software License, Version 1.0.
 (See accompanying file LICENSE_1_0.txt or copy at
 http://www.boost.org/LICENSE_1_0.txt)