diff --git a/src/Camera.cpp b/src/Camera.cpp
index cd733e9..1f7387a 100644
--- a/src/Camera.cpp
+++ b/src/Camera.cpp
@@ -51,7 +51,7 @@ void Camera::wheelEvent(QWheelEvent* event, const QVector3D& worldPos)
         QMatrix4x4 rotation;
         rotation.rotate(m_xRot / 16.0f, 1, 0, 0);
         rotation.rotate(m_yRot / 16.0f, 0, 1, 0);
-        QVector3D p_camera = rotation * worldPos;
+        QVector3D p_camera = rotation.map(worldPos);
 
         if (std::abs(p_camera.z() + oldZoom) < 1e-6) {
             setZoom(newZoom);
diff --git a/src/ViewportWidget.cpp b/src/ViewportWidget.cpp
index 40d2633..b6d5a37 100644
--- a/src/ViewportWidget.cpp
+++ b/src/ViewportWidget.cpp
@@ -239,7 +239,7 @@ void ViewportWidget::mouseMoveEvent(QMouseEvent *event)
 
 void ViewportWidget::wheelEvent(QWheelEvent *event)
 {
-    QVector3D worldPos = unproject(event->pos(), m_currentPlane);
+    QVector3D worldPos = unproject(event->position().toPoint(), m_currentPlane);
     m_camera->wheelEvent(event, worldPos);
 }