diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2ba59ce0..1ba340b8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@ Version 50
 * Body documentation work
 * Add missing handler_alloc nested types
 * Fix chunk delimiter parsing
+* Fix test::pipe read_size
 
 API Changes:
 
diff --git a/extras/beast/test/pipe_stream.hpp b/extras/beast/test/pipe_stream.hpp
index eac8549c..0f02a49d 100644
--- a/extras/beast/test/pipe_stream.hpp
+++ b/extras/beast/test/pipe_stream.hpp
@@ -368,7 +368,7 @@ read_some(MutableBufferSequence const& buffers,
     if(in_.b.size() > 0)
     {   
         bytes_transferred = buffer_copy(
-            buffers, in_.b.data(), write_max_);
+            buffers, in_.b.data(), read_max_);
         in_.b.consume(bytes_transferred);
     }
     else