1 files changed, 2 insertions, 0 deletions
diff --git a/libcxx/test/std/thread/thread.threads/thread.thread.class/thread.thread.id/assign.pass.cpp b/libcxx/test/std/thread/thread.threads/thread.thread.class/thread.thread.id/assign.pass.cpp
index fb4b7eb5ae0..fddc9538b2f 100644
--- a/libcxx/test/std/thread/thread.threads/thread.thread.class/thread.thread.id/assign.pass.cpp
+++ b/libcxx/test/std/thread/thread.threads/thread.thread.class/thread.thread.id/assign.pass.cpp
@@ -17,6 +17,8 @@
 #include <thread>
 #include <cassert>
 
+#include "test_macros.h"
+
 int main(int, char**)
 {
     std::thread::id id0;