diff --git a/hw/smbios.c b/hw/smbios.c
index c9ba43e..c57237d 100644
--- a/hw/smbios.c
+++ b/hw/smbios.c
@@ -9,6 +9,8 @@
  * This work is licensed under the terms of the GNU GPL, version 2.  See
  * the COPYING file in the top-level directory.
  *
+ * Contributions after 2012-01-13 are licensed under the terms of the
+ * GNU GPL, version 2 or (at your option) any later version.
  */
 
 #include "sysemu.h"