diff --git a/boost/network/protocol/stream_handler.hpp b/boost/network/protocol/stream_handler.hpp
index 2231af0cf..ffb09b82b 100644
--- a/boost/network/protocol/stream_handler.hpp
+++ b/boost/network/protocol/stream_handler.hpp
@@ -18,6 +18,7 @@
 #include <boost/asio/detail/push_options.hpp>
 #include <boost/asio/detail/throw_error.hpp>
 #include <boost/asio/error.hpp>
+#include <boost/asio/io_service.hpp>
 #include <boost/asio/stream_socket_service.hpp>
 #include <cstddef>