diff --git a/beast/module/asio/protocol/HandshakeDetectLogicSSL3.h b/beast/module/asio/protocol/HandshakeDetectLogicSSL3.h
index d77bed1edf..e4557fc9ff 100644
--- a/beast/module/asio/protocol/HandshakeDetectLogicSSL3.h
+++ b/beast/module/asio/protocol/HandshakeDetectLogicSSL3.h
@@ -20,6 +20,8 @@
 #ifndef BEAST_ASIO_HANDSHAKE_HANDSHAKEDETECTLOGICSSL3_H_INCLUDED
 #define BEAST_ASIO_HANDSHAKE_HANDSHAKEDETECTLOGICSSL3_H_INCLUDED
 
+#include <beast/ByteOrder.h>
+    
 namespace beast {
 namespace asio {
 
diff --git a/beast/module/asio/protocol/HandshakeDetector.h b/beast/module/asio/protocol/HandshakeDetector.h
index f4281a6641..eb57428317 100644
--- a/beast/module/asio/protocol/HandshakeDetector.h
+++ b/beast/module/asio/protocol/HandshakeDetector.h
@@ -27,6 +27,7 @@
 #include <beast/asio/shared_handler.h>
 
 #include <boost/asio/detail/handler_cont_helpers.hpp>
+#include <boost/asio/streambuf.hpp>
 
 namespace beast {
 namespace asio {
diff --git a/beast/module/asio/protocol/PrefilledReadStream.h b/beast/module/asio/protocol/PrefilledReadStream.h
index 6bbb99d57c..6adf0dc7e4 100644
--- a/beast/module/asio/protocol/PrefilledReadStream.h
+++ b/beast/module/asio/protocol/PrefilledReadStream.h
@@ -36,7 +36,7 @@ namespace asio {
     Write operations are all simply passed through.
 */
 template <class Stream>
-class PrefilledReadStream : public Uncopyable
+class PrefilledReadStream
 {
 protected:
     typedef boost::system::error_code error_code;
@@ -47,6 +47,9 @@ protected:
     }
 
 public:
+    PrefilledReadStream (PrefilledReadStream const&) = delete;
+    PrefilledReadStream& operator= (PrefilledReadStream const&) = delete;
+
     typedef std::remove_reference_t <Stream> next_layer_type;
     typedef typename next_layer_type::lowest_layer_type lowest_layer_type;