1 files changed, 1 insertions, 4 deletions
diff --git a/libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/variadic_mutex.fail.cpp b/libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/variadic_mutex.fail.cpp
index 7c3c98b6aca..1eef7e268fb 100644
--- a/libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/variadic_mutex.fail.cpp
+++ b/libcxx/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/variadic_mutex.fail.cpp
@@ -10,16 +10,13 @@
 // UNSUPPORTED: libcpp-has-no-threads
 // UNSUPPORTED: c++98, c++03
 
-// FIXME: When modules are enabled we can't affect the contents of <mutex>
-// by defining a macro
-// XFAIL: -fmodules
-
 // <mutex>
 
 // template <class ...Mutex> class lock_guard;
 
 // explicit lock_guard(Mutex&...);
 
+// MODULES_DEFINES: _LIBCPP_ABI_VARIADIC_LOCK_GUARD
 #define _LIBCPP_ABI_VARIADIC_LOCK_GUARD
 #include <mutex>