diff --git a/CHANGELOG.md b/CHANGELOG.md
index bc94f71e..b14ad70d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+Version 53:
+
+* Fix basic_parser::maybe_flatten
+
+--------------------------------------------------------------------------------
+
 Version 52:
 
 * flat_buffer is an AllocatorAwareContainer
diff --git a/examples/ssl/http_ssl_example.cpp b/examples/ssl/http_ssl_example.cpp
index 20a8c652..b179ccab 100644
--- a/examples/ssl/http_ssl_example.cpp
+++ b/examples/ssl/http_ssl_example.cpp
@@ -5,6 +5,7 @@
 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 //
 
+#include <beast/core.hpp>
 #include <beast/http.hpp>
 #include <boost/asio.hpp>
 #include <boost/asio/ssl.hpp>
@@ -45,7 +46,7 @@ int main()
     beast::http::write(stream, req);
 
     // Receive and print HTTP response using Beast
-    beast::multi_buffer b;
+    beast::flat_buffer b;
     beast::http::response<beast::http::dynamic_body> resp;
     beast::http::read(stream, b, resp);
     std::cout << resp;
diff --git a/include/beast/http/impl/basic_parser.ipp b/include/beast/http/impl/basic_parser.ipp
index 03754441..bb64f7dc 100644
--- a/include/beast/http/impl/basic_parser.ipp
+++ b/include/beast/http/impl/basic_parser.ipp
@@ -238,7 +238,7 @@ maybe_flatten(
     // flatten
     buffer_copy(boost::asio::buffer(
         buf_.get(), buf_len_), buffers);
-    return {buf_.get(), buf_len_};
+    return {buf_.get(), len};
 }
 
 template<bool isRequest, class Derived>