diff --git a/osciwidget.cpp b/osciwidget.cpp
index 330a64a..97a82d0 100644
--- a/osciwidget.cpp
+++ b/osciwidget.cpp
@@ -5,7 +5,7 @@
 #include <QLine>
 
 OsciWidget::OsciWidget(QWidget *parent) :
-    QWidget(parent)
+    QOpenGLWidget(parent)
 {
     restartTimer();
     resizePixmap();
diff --git a/osciwidget.h b/osciwidget.h
index 70641f1..77a75a8 100644
--- a/osciwidget.h
+++ b/osciwidget.h
@@ -1,6 +1,8 @@
 #pragma once
 
 #include <QWidget>
+
+#include <QOpenGLWidget>
 #include <QDebug>
 #include <QPainter>
 #include <QPixmap>
@@ -12,7 +14,7 @@
 
 #include "device.h"
 
-class OsciWidget : public QWidget
+class OsciWidget : public QOpenGLWidget
 {
     Q_OBJECT