diff --git a/luprex/cpp/drv/driver-mingw.cpp b/luprex/cpp/drv/driver-mingw.cpp
index 1c30be21..39911c07 100644
--- a/luprex/cpp/drv/driver-mingw.cpp
+++ b/luprex/cpp/drv/driver-mingw.cpp
@@ -128,7 +128,6 @@ SOCKET listen_on_port(int port, std::string &err) {
         goto error;
     }
     set_nonblocking(sock);
-    std::cerr << "listening socket is " << sock << std::endl;
     return sock;
 
 error: