diff --git a/sytest-blacklist b/sytest-blacklist
index 58c794998..2ba23f930 100644
--- a/sytest-blacklist
+++ b/sytest-blacklist
@@ -9,3 +9,6 @@ avatar_url updates affect room member events
 
 # Blacklisted due to flakiness
 Room members can override their displayname on a room-specific basis
+
+# Blacklisted due to flakiness
+Alias creators can delete alias with no ops
diff --git a/sytest-whitelist b/sytest-whitelist
index c7f4ff081..0ba420d3b 100644
--- a/sytest-whitelist
+++ b/sytest-whitelist
@@ -183,7 +183,6 @@ GET /directory/room/:room_alias yields room ID
 PUT /directory/room/:room_alias creates alias
 Room aliases can contain Unicode
 Creators can delete alias
-Alias creators can delete alias with no ops
 Alias creators can delete canonical alias with no ops
 Regular users cannot create room aliases within the AS namespace
 Deleting a non-existent alias should return a 404