diff --git a/include/cpp_yyjson.hpp b/include/cpp_yyjson.hpp
index 0774c9e..a38b91a 100644
--- a/include/cpp_yyjson.hpp
+++ b/include/cpp_yyjson.hpp
@@ -10,6 +10,7 @@
 
 #pragma once
 #include <algorithm>
+#include <cstring>
 #include <memory>
 #include <nameof.hpp>
 #include <optional>