--- rxvt-unicode/src/command.C	2006/01/06 02:58:02	1.238
+++ rxvt-unicode/src/command.C	2006/01/06 03:02:22	1.239
@@ -4456,6 +4456,9 @@
 void
 rxvt_term::tt_write (const char *data, unsigned int len)
 {
+  if (pty.pty < 0)
+    return;
+
   if (v_buflen == 0)
     {
       ssize_t written = write (pty.pty, data, min (len, MAX_PTY_WRITE));