diff --git a/src/transport/transport.hpp b/src/transport/transport.hpp
index 8b16639..e383f4e 100644
--- a/src/transport/transport.hpp
+++ b/src/transport/transport.hpp
@@ -16,6 +16,8 @@
 #include "../common.hpp"
 #include "../encoding/block.hpp"
 
+#include <boost/asio.hpp>
+
 namespace ndn {
 
 class Transport