diff --git a/rtemsbsd/debugger/rtems-debugger-remote-tcp.c b/rtemsbsd/debugger/rtems-debugger-remote-tcp.c
index af222e00..696e2deb 100644
--- a/rtemsbsd/debugger/rtems-debugger-remote-tcp.c
+++ b/rtemsbsd/debugger/rtems-debugger-remote-tcp.c
@@ -276,6 +276,7 @@ tcp_remote_disconnect(rtems_debugger_remote* remote)
 
   tcp = (rtems_debugger_remote_tcp*) remote->data;
   close(tcp->fd);
+  tcp->fd = -1;
 
   rtems_debugger_unlock();