diff --git a/src/WindowManager.cpp b/src/WindowManager.cpp
index cddd7e4..8eb203b 100644
--- a/src/WindowManager.cpp
+++ b/src/WindowManager.cpp
@@ -47,6 +47,12 @@ WindowManager::WindowManager() {
     }
 }
 
+WindowManager::~WindowManager() {
+    qDebug() << "~WindowManager";
+    m_cleanupThread->quit();
+    m_cleanupThread->wait();
+}
+
 // ######################## APPLICATION LIFECYCLE ########################
 
 void WindowManager::quitAfterLastWindow() {
diff --git a/src/WindowManager.h b/src/WindowManager.h
index 801d537..bcba0a6 100644
--- a/src/WindowManager.h
+++ b/src/WindowManager.h
@@ -18,6 +18,7 @@ Q_OBJECT
 
 public:
     explicit WindowManager();
+    ~WindowManager() override;
 
     void wizardOpenWallet();
     void close();