diff --git a/index.bs b/index.bs
index 2b23aebe..d9e1504a 100644
--- a/index.bs
+++ b/index.bs
@@ -10,6 +10,7 @@ Repository: heycam/webidl
 !Feedback: <a href="https://github.com/heycam/webidl">GitHub</a> (<a href="https://github.com/heycam/webidl/issues/new">new issue</a>, <a href="https://github.com/heycam/webidl/issues">open issues</a>, <a href="https://www.w3.org/Bugs/Public/buglist.cgi?product=WebAppsWG&amp;component=WebIDL&amp;resolution=---">legacy bug tracker</a>)
 ED: https://heycam.github.io/webidl/
 Editor: Edgar Chen, Mozilla Corporation, echen@mozilla.com
+Editor: Tiancheng "Timothy" Gu, timothygu99@gmail.com
 Former Editor: Cameron McCormack, Mozilla Corporation, http://mcc.id.au/, cam@mcc.id.au
 Former Editor: Boris Zbarsky, Mozilla Corporation, bzbarsky@mit.edu
 Former Editor: Tobie Langel, https://tobie.me, tobie@unlockopen.com