diff --git a/.tmux.conf b/.tmux.conf
index 15e23f5..3f51bb4 100644
--- a/.tmux.conf
+++ b/.tmux.conf
@@ -623,10 +623,14 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 # }
 #
 # _copy() {
+#   exec 2> /tmp/log.txt
+#   set -x
 #   tty="$SSH_TTY"
 #   tty=${tty:-$1}
 #   tty=${tty:-$(tmux display -p '#{pane_tty}')}
-#   buffer=${2:-$(tmux save-buffer -)}
+#   buffer=${2:-$(tmux save-buffer - || true)}
+#
+#   [ -z "$buffer" ] && return
 #
 #   if [ "$tty" != "$SSH_TTY" ]; then
 #     command -v pbcopy > /dev/null 2>&1 && command='pbcopy'
@@ -643,6 +647,7 @@ run 'cut -c3- ~/.tmux.conf | sh -s _apply_configuration'
 #   fi
 #
 #   printf '\033Ptmux;\033\033]52;c;%s\a\033\\' "$(printf %s "$buffer" | head -c 74994 | base64)" > "$tty"
+#   set +x
 # }
 #
 # _apply_overrides() {