diff --git a/src/google/protobuf/internal_message_util_unittest.cc b/src/google/protobuf/internal_message_util_unittest.cc
index 79234d251e..12a454b91c 100644
--- a/src/google/protobuf/internal_message_util_unittest.cc
+++ b/src/google/protobuf/internal_message_util_unittest.cc
@@ -7,8 +7,14 @@
 
 #include "google/protobuf/internal_message_util.h"
 
+#include <memory>
+#include <string>
+
 #include <gmock/gmock.h>
 #include <gtest/gtest.h>
+#include "absl/log/absl_check.h"
+#include "absl/memory/memory.h"
+#include "absl/strings/string_view.h"
 #include "google/protobuf/map_unittest.pb.h"
 #include "google/protobuf/unittest.pb.h"