diff --git a/single_include/toml.hpp b/single_include/toml.hpp
index f43cfd2..78e8603 100644
--- a/single_include/toml.hpp
+++ b/single_include/toml.hpp
@@ -3577,6 +3577,14 @@ struct has_into_toml_method_impl
     static std::false_type check(...);
 };
 
+struct has_template_into_toml_method_impl
+{
+    template<typename T, typename TypeConfig>
+    static std::true_type  check(decltype(std::declval<T>().template into_toml<TypeConfig>())*);
+    template<typename T, typename TypeConfig>
+    static std::false_type check(...);
+};
+
 struct has_specialized_from_impl
 {
     template<typename T>
@@ -3620,6 +3628,9 @@ struct has_from_toml_method: decltype(has_from_toml_method_impl::check<T, TC>(nu
 template<typename T>
 struct has_into_toml_method: decltype(has_into_toml_method_impl::check<T>(nullptr)){};
 
+template<typename T, typename TypeConfig>
+struct has_template_into_toml_method: decltype(has_template_into_toml_method_impl::check<T, TypeConfig>(nullptr)){};
+
 template<typename T>
 struct has_specialized_from: decltype(has_specialized_from_impl::check<T>(nullptr)){};
 template<typename T>
@@ -6660,6 +6671,29 @@ class basic_value
         *this = ud.into_toml();
         return *this;
     }
+
+    template<typename T, cxx::enable_if_t<cxx::conjunction<
+            detail::has_template_into_toml_method<T, TypeConfig>,
+            cxx::negation<detail::has_specialized_into<T>>
+        >::value, std::nullptr_t> = nullptr>
+    basic_value(const T& ud): basic_value(ud.template into_toml<TypeConfig>()) {}
+
+    template<typename T, cxx::enable_if_t<cxx::conjunction<
+            detail::has_template_into_toml_method<T, TypeConfig>,
+            cxx::negation<detail::has_specialized_into<T>>
+        >::value, std::nullptr_t> = nullptr>
+    basic_value(const T& ud, std::vector<std::string> com)
+        : basic_value(ud.template into_toml<TypeConfig>(), std::move(com))
+    {}
+    template<typename T, cxx::enable_if_t<cxx::conjunction<
+            detail::has_template_into_toml_method<T, TypeConfig>,
+            cxx::negation<detail::has_specialized_into<T>>
+        >::value, std::nullptr_t> = nullptr>
+    basic_value& operator=(const T& ud)
+    {
+        *this = ud.template into_toml<TypeConfig>();
+        return *this;
+    }
     // }}}
 
     // empty value with region info ======================================= {{{