diff --git a/CHANGELOG.md b/CHANGELOG.md
index c2edcd8a..5c746f64 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,7 @@
 Version 173:
 
 * Remove Autobahn testsuite doc note
+* Fix buffers_adapter iterator value type
 
 --------------------------------------------------------------------------------
 
diff --git a/include/boost/beast/core/impl/buffers_adapter.ipp b/include/boost/beast/core/impl/buffers_adapter.ipp
index e16d2a9b..d7f479ca 100644
--- a/include/boost/beast/core/impl/buffers_adapter.ipp
+++ b/include/boost/beast/core/impl/buffers_adapter.ipp
@@ -28,7 +28,7 @@ class buffers_adapter<MutableBufferSequence>::
     buffers_adapter const* ba_;
 
 public:
-    using value_type = boost::asio::mutable_buffer;
+    using value_type = boost::asio::const_buffer;
 
     class const_iterator;