--- a/tcpserver/TCPServer.cpp
+++ b/tcpserver/TCPServer.cpp
@@ -59,7 +59,7 @@ namespace tcp {
 			// Post a call to the stop function so that server::stop() is safe to call
 			// from any thread.
 			flghandle_stop_Completed=false;
-			boost::asio::post([this] { handle_stop(); });
+			boost::asio::post(io_context_, [this] { handle_stop(); });
 		}
 
 		void CTCPServerInt::handle_stop()