diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6b0066d3..cd6b04b8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 1.0.0-b28
 
 * Split out and rename test stream classes
+* Restyle async result constructions
 
 --------------------------------------------------------------------------------
 
diff --git a/extras/beast/test/fail_stream.hpp b/extras/beast/test/fail_stream.hpp
index fc656514..8ec63dc5 100644
--- a/extras/beast/test/fail_stream.hpp
+++ b/extras/beast/test/fail_stream.hpp
@@ -113,7 +113,7 @@ public:
         {
             async_completion<
                 ReadHandler, void(error_code, std::size_t)
-                    > completion(handler);
+                    > completion{handler};
             next_layer_.get_io_service().post(
                 bind_handler(completion.handler, ec, 0));
             return completion.result.get();
@@ -150,7 +150,7 @@ public:
         {
             async_completion<
                 WriteHandler, void(error_code, std::size_t)
-                    > completion(handler);
+                    > completion{handler};
             next_layer_.get_io_service().post(
                 bind_handler(completion.handler, ec, 0));
             return completion.result.get();
diff --git a/extras/beast/test/string_istream.hpp b/extras/beast/test/string_istream.hpp
index 2ff07448..e7c32064 100644
--- a/extras/beast/test/string_istream.hpp
+++ b/extras/beast/test/string_istream.hpp
@@ -88,7 +88,7 @@ public:
         else
             ec = boost::asio::error::eof;
         async_completion<ReadHandler,
-            void(error_code, std::size_t)> completion(handler);
+            void(error_code, std::size_t)> completion{handler};
         ios_.post(bind_handler(
             completion.handler, ec, n));
         return completion.result.get();
@@ -120,7 +120,7 @@ public:
         WriteHandler&& handler)
     {
         async_completion<WriteHandler,
-            void(error_code, std::size_t)> completion(handler);
+            void(error_code, std::size_t)> completion{handler};
         ios_.post(bind_handler(completion.handler,
             error_code{}, boost::asio::buffer_size(buffers)));
         return completion.result.get();
diff --git a/extras/beast/test/string_ostream.hpp b/extras/beast/test/string_ostream.hpp
index 63a6f110..a939da7a 100644
--- a/extras/beast/test/string_ostream.hpp
+++ b/extras/beast/test/string_ostream.hpp
@@ -105,7 +105,7 @@ public:
         auto const bytes_transferred = write_some(buffers, ec);
         async_completion<
             WriteHandler, void(error_code, std::size_t)
-                > completion(handler);
+                > completion{handler};
         get_io_service().post(
             bind_handler(completion.handler, ec, bytes_transferred));
         return completion.result.get();
diff --git a/include/beast/core/async_completion.hpp b/include/beast/core/async_completion.hpp
index 70c2e537..af5c67d2 100644
--- a/include/beast/core/async_completion.hpp
+++ b/include/beast/core/async_completion.hpp
@@ -38,7 +38,7 @@ namespace beast {
     async_initfn(..., CompletionHandler&& handler)
     {
         async_completion<CompletionHandler,
-            void(error_code)> completion(handler);
+            void(error_code)> completion{handler};
         ...
         return completion.result.get();
     }
diff --git a/include/beast/core/impl/dynabuf_readstream.ipp b/include/beast/core/impl/dynabuf_readstream.ipp
index ba9e1c0b..5a0815ba 100644
--- a/include/beast/core/impl/dynabuf_readstream.ipp
+++ b/include/beast/core/impl/dynabuf_readstream.ipp
@@ -242,7 +242,7 @@ async_read_some(
             "MutableBufferSequence requirements not met");
     beast::async_completion<
         ReadHandler, void(error_code, std::size_t)
-            > completion(handler);
+            > completion{handler};
     read_some_op<MutableBufferSequence,
         decltype(completion.handler)>{
             completion.handler, *this, buffers};
diff --git a/include/beast/http/impl/parse.ipp b/include/beast/http/impl/parse.ipp
index 8f7d8171..17219fc3 100644
--- a/include/beast/http/impl/parse.ipp
+++ b/include/beast/http/impl/parse.ipp
@@ -289,7 +289,7 @@ async_parse(AsyncReadStream& stream,
     static_assert(is_Parser<Parser>::value,
         "Parser requirements not met");
     beast::async_completion<ReadHandler,
-        void(error_code)> completion(handler);
+        void(error_code)> completion{handler};
     detail::parse_op<AsyncReadStream, DynamicBuffer,
         Parser, decltype(completion.handler)>{
             completion.handler, stream, dynabuf, parser};
diff --git a/include/beast/http/impl/read.ipp b/include/beast/http/impl/read.ipp
index 009ef7ca..3bcf27c7 100644
--- a/include/beast/http/impl/read.ipp
+++ b/include/beast/http/impl/read.ipp
@@ -183,7 +183,7 @@ async_read(AsyncReadStream& stream, DynamicBuffer& dynabuf,
     static_assert(is_DynamicBuffer<DynamicBuffer>::value,
         "DynamicBuffer requirements not met");
     beast::async_completion<ReadHandler,
-        void(error_code)> completion(handler);
+        void(error_code)> completion{handler};
     detail::read_header_op<AsyncReadStream, DynamicBuffer,
         isRequest, Fields, decltype(
             completion.handler)>{completion.handler,
@@ -375,7 +375,7 @@ async_read(AsyncReadStream& stream, DynamicBuffer& dynabuf,
         message<isRequest, Body, Fields>>::value,
             "Reader requirements not met");
     beast::async_completion<ReadHandler,
-        void(error_code)> completion(handler);
+        void(error_code)> completion{handler};
     detail::read_op<AsyncReadStream, DynamicBuffer,
         isRequest, Body, Fields, decltype(
             completion.handler)>{completion.handler,
diff --git a/include/beast/http/impl/write.ipp b/include/beast/http/impl/write.ipp
index ed0a1aeb..7e97eebd 100644
--- a/include/beast/http/impl/write.ipp
+++ b/include/beast/http/impl/write.ipp
@@ -234,7 +234,7 @@ async_write(AsyncWriteStream& stream,
     static_assert(is_AsyncWriteStream<AsyncWriteStream>::value,
         "AsyncWriteStream requirements not met");
     beast::async_completion<WriteHandler,
-        void(error_code)> completion(handler);
+        void(error_code)> completion{handler};
     streambuf sb;
     detail::write_start_line(sb, msg);
     detail::write_fields(sb, msg.fields);
@@ -728,7 +728,7 @@ async_write(AsyncWriteStream& stream,
         message<isRequest, Body, Fields>>::value,
             "Writer requirements not met");
     beast::async_completion<WriteHandler,
-        void(error_code)> completion(handler);
+        void(error_code)> completion{handler};
     detail::write_op<AsyncWriteStream, decltype(completion.handler),
         isRequest, Body, Fields>{completion.handler, stream, msg};
     return completion.result.get();
diff --git a/include/beast/websocket/impl/accept.ipp b/include/beast/websocket/impl/accept.ipp
index 7be6d9cd..877be120 100644
--- a/include/beast/websocket/impl/accept.ipp
+++ b/include/beast/websocket/impl/accept.ipp
@@ -288,7 +288,7 @@ async_accept(ConstBufferSequence const& bs, AcceptHandler&& handler)
             "ConstBufferSequence requirements not met");
     beast::async_completion<
         AcceptHandler, void(error_code)
-            > completion(handler);
+            > completion{handler};
     accept_op<decltype(completion.handler)>{
         completion.handler, *this, bs};
     return completion.result.get();
@@ -306,7 +306,7 @@ async_accept(http::request<Body, Fields> const& req,
         "AsyncStream requirements requirements not met");
     beast::async_completion<
         AcceptHandler, void(error_code)
-            > completion(handler);
+            > completion{handler};
     reset();
     response_op<decltype(completion.handler)>{
         completion.handler, *this, req,
diff --git a/include/beast/websocket/impl/close.ipp b/include/beast/websocket/impl/close.ipp
index 7684904b..0ad5992b 100644
--- a/include/beast/websocket/impl/close.ipp
+++ b/include/beast/websocket/impl/close.ipp
@@ -197,7 +197,7 @@ async_close(close_reason const& cr, CloseHandler&& handler)
         "AsyncStream requirements not met");
     beast::async_completion<
         CloseHandler, void(error_code)
-            > completion(handler);
+            > completion{handler};
     close_op<decltype(completion.handler)>{
         completion.handler, *this, cr};
     return completion.result.get();
diff --git a/include/beast/websocket/impl/handshake.ipp b/include/beast/websocket/impl/handshake.ipp
index a22a0567..11ea5618 100644
--- a/include/beast/websocket/impl/handshake.ipp
+++ b/include/beast/websocket/impl/handshake.ipp
@@ -158,7 +158,7 @@ async_handshake(boost::string_ref const& host,
         "AsyncStream requirements not met");
     beast::async_completion<
         HandshakeHandler, void(error_code)
-            > completion(handler);
+            > completion{handler};
     handshake_op<decltype(completion.handler)>{
         completion.handler, *this, host, resource};
     return completion.result.get();
diff --git a/include/beast/websocket/impl/ping.ipp b/include/beast/websocket/impl/ping.ipp
index 0ddc4420..73990cce 100644
--- a/include/beast/websocket/impl/ping.ipp
+++ b/include/beast/websocket/impl/ping.ipp
@@ -195,7 +195,7 @@ async_ping(ping_data const& payload, WriteHandler&& handler)
         "AsyncStream requirements requirements not met");
     beast::async_completion<
         WriteHandler, void(error_code)
-            > completion(handler);
+            > completion{handler};
     ping_op<decltype(completion.handler)>{
         completion.handler, *this,
             opcode::ping, payload};
@@ -213,7 +213,7 @@ async_pong(ping_data const& payload, WriteHandler&& handler)
         "AsyncStream requirements requirements not met");
     beast::async_completion<
         WriteHandler, void(error_code)
-            > completion(handler);
+            > completion{handler};
     ping_op<decltype(completion.handler)>{
         completion.handler, *this,
             opcode::pong, payload};
diff --git a/include/beast/websocket/impl/read.ipp b/include/beast/websocket/impl/read.ipp
index 2a9c6dec..6e65beea 100644
--- a/include/beast/websocket/impl/read.ipp
+++ b/include/beast/websocket/impl/read.ipp
@@ -673,7 +673,7 @@ async_read_frame(frame_info& fi,
     static_assert(beast::is_DynamicBuffer<DynamicBuffer>::value,
         "DynamicBuffer requirements not met");
     beast::async_completion<
-        ReadHandler, void(error_code)> completion(handler);
+        ReadHandler, void(error_code)> completion{handler};
     read_frame_op<DynamicBuffer, decltype(completion.handler)>{
         completion.handler, *this, fi, dynabuf};
     return completion.result.get();
@@ -1079,7 +1079,7 @@ async_read(opcode& op,
         "DynamicBuffer requirements not met");
     beast::async_completion<
         ReadHandler, void(error_code)
-            > completion(handler);
+            > completion{handler};
     read_op<DynamicBuffer, decltype(completion.handler)>{
         completion.handler, *this, op, dynabuf};
     return completion.result.get();
diff --git a/include/beast/websocket/impl/write.ipp b/include/beast/websocket/impl/write.ipp
index 77136d71..a278bbd5 100644
--- a/include/beast/websocket/impl/write.ipp
+++ b/include/beast/websocket/impl/write.ipp
@@ -516,7 +516,7 @@ async_write_frame(bool fin,
             "ConstBufferSequence requirements not met");
     beast::async_completion<
         WriteHandler, void(error_code)
-            > completion(handler);
+            > completion{handler};
     write_frame_op<ConstBufferSequence, decltype(
         completion.handler)>{completion.handler,
             *this, fin, bs};
@@ -864,7 +864,7 @@ async_write(ConstBufferSequence const& bs, WriteHandler&& handler)
         ConstBufferSequence>::value,
             "ConstBufferSequence requirements not met");
     beast::async_completion<
-        WriteHandler, void(error_code)> completion(handler);
+        WriteHandler, void(error_code)> completion{handler};
     write_op<ConstBufferSequence, decltype(completion.handler)>{
         completion.handler, *this, bs};
     return completion.result.get();