diff --git a/test/std/re/re.grammar/excessive_brace_count.pass.cpp b/test/std/re/re.grammar/excessive_brace_count.pass.cpp
index cc74a89f3..597182e7e 100644
--- a/test/std/re/re.grammar/excessive_brace_count.pass.cpp
+++ b/test/std/re/re.grammar/excessive_brace_count.pass.cpp
@@ -15,6 +15,7 @@
 
 #include <regex>
 #include <cassert>
+#include "test_macros.h"
 
 int main() {
   for (std::regex_constants::syntax_option_type op :