diff --git a/source/mijin/util/iterators.hpp b/source/mijin/util/iterators.hpp
index b49c99a..40c8a35 100644
--- a/source/mijin/util/iterators.hpp
+++ b/source/mijin/util/iterators.hpp
@@ -3,6 +3,7 @@
 #if !defined(MIJIN_UTIL_ITERATORS_HPP_INCLUDED)
 #define MIJIN_UTIL_ITERATORS_HPP_INCLUDED 1
 
+#include <array>
 #include <cstddef>
 #include <functional>
 #include <optional>