diff --git a/sytest-whitelist b/sytest-whitelist
index cfbe54434..cb84913b8 100644
--- a/sytest-whitelist
+++ b/sytest-whitelist
@@ -501,3 +501,5 @@ Can forget room you've been kicked from
 /joined_members return joined members
 A next_batch token can be used in the v1 messages API
 Users receive device_list updates for their own devices
+m.room.history_visibility == "world_readable" allows/forbids appropriately for Guest users
+m.room.history_visibility == "world_readable" allows/forbids appropriately for Real users