diff --git a/core/proto/OWNERS b/core/proto/OWNERS
index 11f6a91..542d26f 100644
--- a/core/proto/OWNERS
+++ b/core/proto/OWNERS
@@ -17,6 +17,9 @@
 roosa@google.com
 per-file usagestatsservice.proto, usagestatsservice_v2.proto = mwachens@google.com
 
+# Biometrics
+kchyn@google.com
+
 # Launcher
 hyunyoungs@google.com