diff --git a/examples/widgets/widgets/scribble/mainwindow.cpp b/examples/widgets/widgets/scribble/mainwindow.cpp
index db4f8d3637..c9a34796ac 100644
--- a/examples/widgets/widgets/scribble/mainwindow.cpp
+++ b/examples/widgets/widgets/scribble/mainwindow.cpp
@@ -58,6 +58,7 @@
 #include <QInputDialog>
 #include <QMenuBar>
 #include <QMessageBox>
+#include <QCloseEvent>
 
 //! [0]
 MainWindow::MainWindow(QWidget *parent)