diff --git a/tools/chatgui/src/mainwindow.cpp b/tools/chatgui/src/mainwindow.cpp
index be215956..1982d2f0 100644
--- a/tools/chatgui/src/mainwindow.cpp
+++ b/tools/chatgui/src/mainwindow.cpp
@@ -84,6 +84,7 @@ MainWindow::MainWindow(QWidget *parent, DbManager* db, const QString& cfgPath,
 }
 
 MainWindow::~MainWindow() {
+    SoundManager::instance()->shutdown();
     DEBUG_DEBUG(DEBUG_CATEGORY_DEBUG, "MainWindow: ~MainWindow — saving channel state");
     if (m_messageList) m_messageList->saveChannelState();
     DEBUG_DEBUG(DEBUG_CATEGORY_DEBUG, "MainWindow: ~MainWindow — stopping utun node");
diff --git a/tools/chatgui/src/sound_manager.cpp b/tools/chatgui/src/sound_manager.cpp
index da477ab6..46603c69 100644
--- a/tools/chatgui/src/sound_manager.cpp
+++ b/tools/chatgui/src/sound_manager.cpp
@@ -3,6 +3,7 @@
 #include "sound_manager.h"
 #include <QFile>
 #include <QDebug>
+#include "../../lib/debug_config.h"
 
 SoundManager* SoundManager::instance() {
     static SoundManager s;
@@ -36,9 +37,10 @@ void SoundManager::shutdown() {
     }
     m_sounds.clear();
 
+    DEBUG_INFO(DEBUG_CATEGORY_DEBUG, "SoundManager: before ma_engine_uninit engine=%p", (void*)m_engine);
     if (m_engine) { ma_engine_uninit(m_engine); delete m_engine; m_engine = nullptr; }
+    DEBUG_INFO(DEBUG_CATEGORY_DEBUG, "SoundManager: after ma_engine_uninit");
     m_initialized = false;
-    qDebug("SoundManager: shutdown");
 }
 
 void SoundManager::setEnabled(bool enabled) { m_enabled = enabled; }