diff --git a/test/http/mutual_tls_meta.cpp b/test/http/mutual_tls_meta.cpp
index 5f32cb5..0e280c1 100644
--- a/test/http/mutual_tls_meta.cpp
+++ b/test/http/mutual_tls_meta.cpp
@@ -1,5 +1,9 @@
 #include "http/mutual_tls_meta.hpp"
 
+#include <optional>
+#include <string>
+#include <vector>
+
 #include <gtest/gtest.h> // IWYU pragma: keep
 
 namespace redfish