QWidget::move() function make widget move twice, one with incorrect coordinates

#include "mainwindow.h"
#include "ui_mainwindow.h"

#include <QtCore/QDebug>
#include <QtGui/QMoveEvent>

MainWindow::MainWindow(QWidget *parent) :
  QMainWindow(parent),
  ui(new Ui::MainWindow)
{
  ui->setupUi(this);
}

MainWindow::~MainWindow()
{
  delete ui;
}

void MainWindow::on_pushButton_clicked()
{
  move(100, 100);
}

void MainWindow::moveEvent(QMoveEvent* e)
{
  qDebug() << e->pos();
}