diff --git a/bip-0390.mediawiki b/bip-0390.mediawiki
index 8dcecab7..34ef8c69 100644
--- a/bip-0390.mediawiki
+++ b/bip-0390.mediawiki
@@ -109,7 +109,7 @@ are likely to be familiar with them.
 
 ==Reference Implementation==
 
-TBD
+The reference implementation is available in Bitcoin Core [[https://github.com/bitcoin/bitcoin/pull/31244|PR #31244]].
 
 ==Acknowledgements==