diff --git a/test/std/thread/futures/futures.async/async.pass.cpp b/test/std/thread/futures/futures.async/async.pass.cpp
index c8a74256..6cfed59b 100644
--- a/test/std/thread/futures/futures.async/async.pass.cpp
+++ b/test/std/thread/futures/futures.async/async.pass.cpp
@@ -8,6 +8,7 @@
 //===----------------------------------------------------------------------===//
 //
 // UNSUPPORTED: libcpp-has-no-threads
+// UNSUPPORTED: c++98, c++03
 
 // <future>
 
diff --git a/test/std/thread/futures/futures.async/async_race.pass.cpp b/test/std/thread/futures/futures.async/async_race.pass.cpp
index 325a0271..9acdd1ab 100644
--- a/test/std/thread/futures/futures.async/async_race.pass.cpp
+++ b/test/std/thread/futures/futures.async/async_race.pass.cpp
@@ -8,6 +8,7 @@
 //===----------------------------------------------------------------------===//
 //
 // UNSUPPORTED: libcpp-has-no-threads
+// UNSUPPORTED: c++98, c++03
 
 // <future>