diff --git a/websocketpp/transport/asio/connection.hpp b/websocketpp/transport/asio/connection.hpp
index 6298f45c04..459d0df6fe 100644
--- a/websocketpp/transport/asio/connection.hpp
+++ b/websocketpp/transport/asio/connection.hpp
@@ -31,7 +31,8 @@
 #include <websocketpp/common/memory.hpp>
 #include <websocketpp/common/functional.hpp>
 #include <websocketpp/common/connection_hdl.hpp>
-
+#include <websocketpp/logger/levels.hpp>
+#include <websocketpp/http/constants.hpp>
 #include <websocketpp/transport/asio/base.hpp>
 #include <websocketpp/transport/base/connection.hpp>
 
diff --git a/websocketpp/transport/asio/endpoint.hpp b/websocketpp/transport/asio/endpoint.hpp
index ab3e61ac69..bd40b6a169 100644
--- a/websocketpp/transport/asio/endpoint.hpp
+++ b/websocketpp/transport/asio/endpoint.hpp
@@ -29,6 +29,7 @@
 #define WEBSOCKETPP_TRANSPORT_ASIO_HPP
 
 #include <websocketpp/common/functional.hpp>
+#include <websocketpp/logger/levels.hpp>
 #include <websocketpp/transport/base/endpoint.hpp>
 #include <websocketpp/transport/asio/connection.hpp>
 #include <websocketpp/transport/asio/security/none.hpp>