diff --git a/drivers/serial/pty.c b/drivers/serial/pty.c
index 99c7514880f..ca238d9fc93 100644
--- a/drivers/serial/pty.c
+++ b/drivers/serial/pty.c
@@ -1109,6 +1109,10 @@ int pty_register(int minor)
   devpair->pp_master.pd_devpair = devpair;
   devpair->pp_master.pd_master  = true;
   devpair->pp_slave.pd_devpair  = devpair;
+#ifdef CONFIG_SERIAL_TERMIOS
+  devpair->pp_slave.pd_iflag    = ISIG;
+  devpair->pp_slave.pd_oflag    = OPOST | ONLCR;
+#endif
 
   /* Create two pipes:
    *