diff --git a/AUTHORS b/AUTHORS
index 0cc6414431..3ac25ff370 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -282,3 +282,4 @@ Jeff LaJoie <jlajoie@edx.org>
 Ivan Ivić <iivic@edx.org>
 Brandon Baker <bcbaker@wesleyan.edu>
 Shirley He <she@edx.org>
+Po Tsui <potsui@stanford.edu>