diff --git a/src/serialization/base64.hpp b/src/serialization/base64.hpp
index a35bdeac501..f38d7997feb 100644
--- a/src/serialization/base64.hpp
+++ b/src/serialization/base64.hpp
@@ -16,6 +16,7 @@
 #pragma once
 
 #include <cstdint>
+#include <string>
 #include <string_view>
 #include <vector>