diff --git a/bip-0020.mediawiki b/bip-0020.mediawiki
index 1e9a733bd8..86227038e3 100644
--- a/bip-0020.mediawiki
+++ b/bip-0020.mediawiki
@@ -9,6 +9,7 @@
   Type: Standards Track
   Created: 2011-01-10
   License: BSD-2-Clause
+  Superseded-By: 21
 </pre>
 
 BIP 0020 is based off an earlier document by Nils Schneider. '''And has been replaced by BIP 0021'''
diff --git a/bip-0021.mediawiki b/bip-0021.mediawiki
index d458603814..a0bd9f9999 100644
--- a/bip-0021.mediawiki
+++ b/bip-0021.mediawiki
@@ -9,6 +9,7 @@
   Status: Replaced
   Type: Standards Track
   Created: 2012-01-29
+  Replaces: 20
   Superseded-By: 321
 </pre>