diff --git a/CHANGELOG.md b/CHANGELOG.md
index 72436494..a7bc1908 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+Version 244:
+
+* Tidy up declval in some traits
+
+--------------------------------------------------------------------------------
+
 Version 243:
 
 * Fix some typos
diff --git a/include/boost/beast/core/detail/stream_traits.hpp b/include/boost/beast/core/detail/stream_traits.hpp
index ce7f679b..bb1e29c2 100644
--- a/include/boost/beast/core/detail/stream_traits.hpp
+++ b/include/boost/beast/core/detail/stream_traits.hpp
@@ -80,10 +80,10 @@ struct BufferSequence
 {
     using value_type = BufferType;
     using const_iterator = BufferType const*;
-    ~BufferSequence();
+    ~BufferSequence() = default;
     BufferSequence(BufferSequence const&) = default;
-    const_iterator begin() const noexcept;
-    const_iterator end() const noexcept;
+    const_iterator begin() const noexcept { return {}; }
+    const_iterator end() const noexcept { return {}; }
 };
 using ConstBufferSequence =
     BufferSequence<net::const_buffer>;
@@ -97,7 +97,7 @@ using MutableBufferSequence =
 struct StreamHandler
 {
     StreamHandler(StreamHandler const&) = default;
-    void operator()(error_code ec, std::size_t);
+    void operator()(error_code, std::size_t) {}
 };
 using ReadHandler = StreamHandler;
 using WriteHandler = StreamHandler;
diff --git a/include/boost/beast/core/stream_traits.hpp b/include/boost/beast/core/stream_traits.hpp
index 53b663b6..f1945ea9 100644
--- a/include/boost/beast/core/stream_traits.hpp
+++ b/include/boost/beast/core/stream_traits.hpp
@@ -208,9 +208,9 @@ struct is_sync_read_stream : std::false_type {};
 
 template<class T>
 struct is_sync_read_stream<T, boost::void_t<decltype(
-    std::declval<std::size_t&>() = std::declval<T>().read_some(
+    std::declval<std::size_t&>() = std::declval<T&>().read_some(
         std::declval<detail::MutableBufferSequence>()),
-    std::declval<std::size_t&>() = std::declval<T>().read_some(
+    std::declval<std::size_t&>() = std::declval<T&>().read_some(
         std::declval<detail::MutableBufferSequence>(),
         std::declval<boost::system::error_code&>())
             )>> : std::true_type {};
@@ -335,7 +335,7 @@ struct is_async_read_stream : std::false_type {};
 
 template<class T>
 struct is_async_read_stream<T, boost::void_t<decltype(
-    std::declval<T>().async_read_some(
+    std::declval<T&>().async_read_some(
         std::declval<detail::MutableBufferSequence>(),
         std::declval<detail::ReadHandler>())
             )>> : std::integral_constant<bool,
@@ -379,7 +379,7 @@ struct is_async_write_stream : std::false_type {};
 
 template<class T>
 struct is_async_write_stream<T, boost::void_t<decltype(
-    std::declval<T>().async_write_some(
+    std::declval<T&>().async_write_some(
         std::declval<detail::ConstBufferSequence>(),
         std::declval<detail::WriteHandler>())
             )>> : std::integral_constant<bool,