diff --git a/test/Interop/Cxx/stdlib/std-span-interface.swift b/test/Interop/Cxx/stdlib/std-span-interface.swift
index 680cb5adb16a0..c2f4b2de098c6 100644
--- a/test/Interop/Cxx/stdlib/std-span-interface.swift
+++ b/test/Interop/Cxx/stdlib/std-span-interface.swift
@@ -7,6 +7,7 @@
 
 // REQUIRES: swift_feature_SafeInteropWrappers
 // REQUIRES: swift_feature_Lifetimes
+// REQUIRES: rdar161999174
 
 #if !BRIDGING_HEADER
 import StdSpan