diff --git a/src/vbox/vbox_common.c b/src/vbox/vbox_common.c
index 8c8c53c60861bb51ee36ef8ade879dcd64e50ad9..9ac93c87b890092ad49e3dbbd7c3365e2d94b7bf 100644
--- a/src/vbox/vbox_common.c
+++ b/src/vbox/vbox_common.c
@@ -1,5 +1,7 @@
 /*
- * Copyright 2014, Taowei Luo (uaedante@gmail.com)
+ * Copyright (C) 2014, Taowei Luo (uaedante@gmail.com)
+ * Copyright (C) 2010-2014 Red Hat, Inc.
+ * Copyright (C) 2008-2009 Sun Microsystems, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/src/vbox/vbox_common.h b/src/vbox/vbox_common.h
index 76288d46760d56742ad0e608ed6329fdbed22b73..52d47b2dc20e037e5cef75a4f8048285b51c19d0 100644
--- a/src/vbox/vbox_common.h
+++ b/src/vbox/vbox_common.h
@@ -1,5 +1,6 @@
 /*
- * Copyright 2014, Taowei Luo (uaedante@gmail.com)
+ * Copyright (C) 2014, Taowei Luo (uaedante@gmail.com)
+ * Copyright (C) 2008-2009 Sun Microsystems, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/src/vbox/vbox_get_driver.h b/src/vbox/vbox_get_driver.h
index 617974dd240524735ce8e217e3feaa28920752f2..025236f23bca567614774a8c8e26333f902d0b54 100644
--- a/src/vbox/vbox_get_driver.h
+++ b/src/vbox/vbox_get_driver.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2014, Taowei Luo (uaedante@gmail.com)
+ * Copyright (C) 2014, Taowei Luo (uaedante@gmail.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/src/vbox/vbox_uniformed_api.h b/src/vbox/vbox_uniformed_api.h
index 66fcb78d08c4158a008809d64b3cc2b18a29a476..e1790cd8204dff60d64d5adc0fe012771bec96ba 100644
--- a/src/vbox/vbox_uniformed_api.h
+++ b/src/vbox/vbox_uniformed_api.h
@@ -1,5 +1,5 @@
 /*
- * Copyright 2014, Taowei Luo (uaedante@gmail.com)
+ * Copyright (C) 2014, Taowei Luo (uaedante@gmail.com)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public