diff --git a/BrainATUMtome/mainwindow.cpp b/BrainATUMtome/mainwindow.cpp
index c3a89e3..d0a563c 100644
--- a/BrainATUMtome/mainwindow.cpp
+++ b/BrainATUMtome/mainwindow.cpp
@@ -43,7 +43,7 @@ MainWindow::MainWindow(QWidget *parent) :
     m_thread_driverMicrotome = new QThread(this);
     m_driverMicrotome->moveToThread(m_thread_driverMicrotome);
     connect(m_thread_driverMicrotome, &QThread::finished, m_driverMicrotome, &DriverMicrotome::deleteLater);
-    m_thread_driverMicrotome->deleteLater();
+    m_thread_driverMicrotome->start();
 
     connect(this, &MainWindow::uirequest_dmt_cuttingMotroOff, m_driverMicrotome, &DriverMicrotome::on_uirequest_cuttingMotorOff);
     connect(this, &MainWindow::uirequest_dmt_cuttingMotorOn, m_driverMicrotome, &DriverMicrotome::on_uirequest_cuttingMotorOn);