diff --git a/test/Interop/Cxx/class/protocol-conformance-typechecker.swift b/test/Interop/Cxx/class/protocol-conformance-typechecker.swift
index c12f77f26af85..160ccff54e62c 100644
--- a/test/Interop/Cxx/class/protocol-conformance-typechecker.swift
+++ b/test/Interop/Cxx/class/protocol-conformance-typechecker.swift
@@ -1,3 +1,5 @@
+// REQUIRES: rdar162095015
+
 // Tests that a C++ class can conform to a Swift protocol.
 
 // RUN: %target-typecheck-verify-swift -I %S/Inputs -enable-experimental-cxx-interop