diff --git a/include/boost/poly_collection/detail/value_holder.hpp b/include/boost/poly_collection/detail/value_holder.hpp
index fe06efd..b4cef22 100644
--- a/include/boost/poly_collection/detail/value_holder.hpp
+++ b/include/boost/poly_collection/detail/value_holder.hpp
@@ -1,4 +1,4 @@
-/* Copyright 2016-2018 Joaquin M Lopez Munoz.
+/* Copyright 2016-2022 Joaquin M Lopez Munoz.
  * Distributed under the Boost Software License, Version 1.0.
  * (See accompanying file LICENSE_1_0.txt or copy at
  * http://www.boost.org/LICENSE_1_0.txt)
@@ -58,7 +58,7 @@ template<typename T>
 class value_holder_base
 {
 protected:
-  typename std::aligned_storage<sizeof(T),alignof(T)>::type s;
+  alignas(T) unsigned char s[sizeof(T)];
 };
 
 template<typename T>