diff --git a/validation-test/compiler_crashers_2_fixed/rdar71260862.swift b/validation-test/compiler_crashers_2_fixed/rdar71260862.swift
index ee04cece7eccc..9c3721b32162c 100644
--- a/validation-test/compiler_crashers_2_fixed/rdar71260862.swift
+++ b/validation-test/compiler_crashers_2_fixed/rdar71260862.swift
@@ -1,4 +1,5 @@
 // RUN: %target-swift-frontend %s -emit-ir -enable-library-evolution -enable-experimental-concurrency
+// REQUIRES: concurrency
 
 public class X {
   public func f() async { }