diff --git a/test/Distributed/SIL/distributed_actor_default_deinit_sil.swift b/test/Distributed/SIL/distributed_actor_default_deinit_sil.swift
index 00ef1fa50ec4..e912acb49281 100644
--- a/test/Distributed/SIL/distributed_actor_default_deinit_sil.swift
+++ b/test/Distributed/SIL/distributed_actor_default_deinit_sil.swift
@@ -4,6 +4,9 @@
 // REQUIRES: concurrency
 // REQUIRES: distributed
 
+// FIXME(distributed): test fails on optimized build: OSS - Swift (Tools Opt+No Assert,  Stdlib Opt+DebInfo, Test Simulator) - macOS
+// REQUIRES: radar97074020
+
 import Distributed
 import FakeDistributedActorSystems