From ea15e071a011d8647ba11cc21046aab6d7d2e782 Mon Sep 17 00:00:00 2001
From: Teebonne <80053070+Teebonne@users.noreply.github.com>
Date: Sun, 9 Oct 2022 18:56:06 +0100
Subject: [PATCH] Update optional.hpp

---
 include/xlnt/utils/optional.hpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/xlnt/utils/optional.hpp b/include/xlnt/utils/optional.hpp
index 27a6e6b9..ab9c9a7d 100644
--- a/include/xlnt/utils/optional.hpp
+++ b/include/xlnt/utils/optional.hpp
@@ -27,6 +27,7 @@
 #include "xlnt/utils/numeric.hpp"
 #include "xlnt/xlnt_config.hpp"
 #include <type_traits>
+#include <memory>
 
 namespace xlnt {