diff --git a/source/mijin/types/script_value.hpp b/source/mijin/types/script_value.hpp
index 2bc1c82..e9af045 100644
--- a/source/mijin/types/script_value.hpp
+++ b/source/mijin/types/script_value.hpp
@@ -5,6 +5,7 @@
 #define MIJIN_TYPES_SCRIPT_VALUE_HPP_INCLUDED 1
 
 #include <charconv>
+#include <span>
 #include <string>
 #include <unordered_map>
 #include <variant>