From 067437474955aa5341aea0a93de5282fb3347d6e Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sun, 1 Sep 2024 22:02:14 +0530
Subject: [PATCH] ...

---
 src/calibre/gui2/tts2/piper.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/calibre/gui2/tts2/piper.py b/src/calibre/gui2/tts2/piper.py
index 0e24fb996c..bb76c3a0db 100644
--- a/src/calibre/gui2/tts2/piper.py
+++ b/src/calibre/gui2/tts2/piper.py
@@ -249,7 +249,7 @@ class Piper(TTSBackend):
             self._audio_sink.stop()
             sip.delete(self._audio_sink)
             sip.delete(self._process)
-            self._process = None
+            self._process = self._audio_sink = None
 
     def reload_after_configure(self) -> None:
         self.shutdown()