diff --git a/include/libtorrent/chained_buffer.hpp b/include/libtorrent/chained_buffer.hpp
index 22eba1e97..caf2e89be 100644
--- a/include/libtorrent/chained_buffer.hpp
+++ b/include/libtorrent/chained_buffer.hpp
@@ -34,6 +34,7 @@ POSSIBILITY OF SUCH DAMAGE.
 #define TORRENT_CHAINED_BUFFER_HPP_INCLUDED
 
 #include <boost/function.hpp>
+#include <boost/version.hpp>
 #if BOOST_VERSION < 103500
 #include <asio/buffer.hpp>
 #else