diff --git a/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/variadic_mutex.pass.cpp b/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/variadic_mutex.pass.cpp
index d63dc1290..68f84fe32 100644
--- a/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/variadic_mutex.pass.cpp
+++ b/test/std/thread/thread.mutex/thread.lock/thread.lock.guard/variadic_mutex.pass.cpp
@@ -20,6 +20,8 @@
 #include <mutex>
 #include <cassert>
 
+#include "test_macros.h"
+
 struct TestMutex {
     bool locked = false;
     TestMutex() = default;