diff --git a/README.mediawiki b/README.mediawiki
index b45c17a0..a895342b 100644
--- a/README.mediawiki
+++ b/README.mediawiki
@@ -379,6 +379,12 @@ Those proposing changes should consider that ultimately consent may rest with th
 | Suhas Daftuar
 | Standard
 | Draft
+|-
+| [[bip-0142.mediawiki|142]]
+| Address Formats for Witness Program
+| Johnson Lau
+| Standard
+| Draft
 |}
 
 <!-- IMPORTANT!  See the instructions at the top of this page, do NOT JUST add BIPs here! -->
diff --git a/bip-segwitaddress.mediawiki b/bip-0142.mediawiki
similarity index 99%
rename from bip-segwitaddress.mediawiki
rename to bip-0142.mediawiki
index f92e3680..7efeca74 100644
--- a/bip-segwitaddress.mediawiki
+++ b/bip-0142.mediawiki
@@ -1,5 +1,5 @@
 <pre>
-  BIP: x
+  BIP: 142
   Title: Address Formats for Witness Program
   Author: Johnson Lau <jl2012@xbt.hk>
   Status: Draft