From c86cc7027f274f36cc6a313397063971056f6318 Mon Sep 17 00:00:00 2001
From: Chris Koeritz <fred@gruntose.com>
Date: Sun, 22 Jan 2017 16:26:30 -0500
Subject: [PATCH] fixed for cases without WINDOWID

---
 scripts/tty/terminal_titler.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/scripts/tty/terminal_titler.sh b/scripts/tty/terminal_titler.sh
index 3751ba24..e4262498 100644
--- a/scripts/tty/terminal_titler.sh
+++ b/scripts/tty/terminal_titler.sh
@@ -81,7 +81,8 @@ function save_terminal_title()
   # save the former terminal title if we're running in X with xterm.
   which xprop &>/dev/null
   if [ $? -eq 0 ]; then
-    if [[ "$TERM" =~ .*"xterm".* ]]; then
+    # make sure we're actually using xterm *and* that we have a window ID.
+    if [[ "$TERM" =~ .*"xterm".* && ! -z "$WINDOWID" ]]; then
       local prior_title="$(xprop -id $WINDOWID | perl -nle 'print $1 if /^WM_NAME.+= \"(.*)\"$/')"
       if [ ! -z "$prior_title" ]; then
 #echo "saving prior terminal title as '$prior_title'"
-- 
2.34.1