diff --git a/src/mainwindow.h b/src/mainwindow.h
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -54,9 +54,9 @@
     explicit MainWindow(QWidget *parent = nullptr);
 
 protected:
-    void closeEvent(QCloseEvent *event);
-    void dragEnterEvent(QDragEnterEvent *event);
-    void dropEvent(QDropEvent *event);
+    void closeEvent(QCloseEvent *event) override;
+    void dragEnterEvent(QDragEnterEvent *event) override;
+    void dropEvent(QDropEvent *event) override;
 
 private:
     GCodeEditorWidget *m_gcodeEditor = nullptr;
diff --git a/src/widgets/thermowidget.h b/src/widgets/thermowidget.h
--- a/src/widgets/thermowidget.h
+++ b/src/widgets/thermowidget.h
@@ -19,8 +19,8 @@
 */
 #pragma once
 
-#include <qwt_dial.h>
-#include <qwt_dial_needle.h>
+#include <qwt/qwt_dial.h>
+#include <qwt/qwt_dial_needle.h>
 
 class QKeyEvent;
 class QPaintEvent;
@@ -36,20 +36,20 @@
     ~ThermoWidget() = default;
 
     void drawNeedle(QPainter *painter, const QPointF &center,
-                    double radius, double dir, QPalette::ColorGroup colorGroup) const;
+                    double radius, double dir, QPalette::ColorGroup colorGroup) const override;
 
     void setCurrentTemperature(double temperature);
     void setTargetTemperature(int temperature);
 
 signals:
     void targetTemperatureChanged(double targetTemperature);
 
 protected:
-    void focusInEvent(QFocusEvent *event);
-    void focusOutEvent(QFocusEvent *event);
-    void keyPressEvent(QKeyEvent *event);
-    void paintEvent(QPaintEvent *event);
-    void wheelEvent(QWheelEvent *event);
+    void focusInEvent(QFocusEvent *event) override;
+    void focusOutEvent(QFocusEvent *event) override;
+    void keyPressEvent(QKeyEvent *event) override;
+    void paintEvent(QPaintEvent *event) override;
+    void wheelEvent(QWheelEvent *event) override;
 
 private:
     bool isEqual(double a = 0, double b = 0);