diff --git a/src/ws/ws_core.cpp b/src/ws/ws_core.cpp
index 295f68b..a14326b 100644
--- a/src/ws/ws_core.cpp
+++ b/src/ws/ws_core.cpp
@@ -131,6 +131,6 @@ void WsCore::OnPong(websocketpp::connection_hdl, std::string msg) {}
 
 void WsCore::OnPongTimeout(websocketpp::connection_hdl, std::string msg) {}
 
-void WsCore::OnMessage(websocketpp::connection_hdl, client::message_ptr &msg) {
+void WsCore::OnMessage(websocketpp::connection_hdl, client::message_ptr msg) {
   OnReceiveMessage(msg->get_payload());
 }
\ No newline at end of file
diff --git a/src/ws/ws_core.h b/src/ws/ws_core.h
index f31b2fb..dfb2e9d 100644
--- a/src/ws/ws_core.h
+++ b/src/ws/ws_core.h
@@ -39,7 +39,7 @@ class WsCore {
 
   void OnPongTimeout(websocketpp::connection_hdl, std::string msg);
 
-  void OnMessage(websocketpp::connection_hdl, client::message_ptr &msg);
+  void OnMessage(websocketpp::connection_hdl, client::message_ptr msg);
 
   virtual void OnReceiveMessage(const std::string &msg) = 0;
 
diff --git a/xmake.lua b/xmake.lua
index 385a60d..19de16f 100644
--- a/xmake.lua
+++ b/xmake.lua
@@ -16,10 +16,12 @@ add_defines("ASIO_STANDALONE", "ASIO_HAS_STD_TYPE_TRAITS", "ASIO_HAS_STD_SHARED_
 
 if is_plat("windows") then
     add_defines("_WEBSOCKETPP_CPP11_INTERNAL_")
+    add_links("ws2_32", "Bcrypt")
+elseif is_plat("linux") then 
+    add_links("pthread")
+    set_config("cxxflags", "-fPIC")
 end
 
-add_links("ws2_32", "Bcrypt")
-add_cxflags("-MD")
 add_packages("spdlog")
 
 includes("thirdparty")