diff --git a/bip-0123.mediawiki b/bip-0123.mediawiki
index d438322a..2404937b 100644
--- a/bip-0123.mediawiki
+++ b/bip-0123.mediawiki
@@ -7,6 +7,8 @@
   Status: Active
   Type: Process
   Created: 2015-08-26
+  License: CC0-1.0
+           GNU-All-Permissive
 </pre>
 
 ==Abstract==
@@ -17,6 +19,10 @@ BIPs are classified by system layers with lower numbered layers involving more i
 
 The specification defines the layers and sets forth specific criteria for deciding to which layer a particular standards BIP belongs.
 
+==Copyright==
+
+This BIP is dual-licensed under the Creative Commons CC0 1.0 Universal and GNU All-Permissive licenses.
+
 ==Motivation==
 
 Bitcoin is a system involving a number of different standards. Some standards are absolute requirements for interoperability while others can be considered optional, giving implementors a choice of whether to support them.