diff --git a/examples/widgets/animation/sub-attaq/mainwindow.cpp b/examples/widgets/animation/sub-attaq/mainwindow.cpp
index 8f545ecebdf..f9617a22eb1 100644
--- a/examples/widgets/animation/sub-attaq/mainwindow.cpp
+++ b/examples/widgets/animation/sub-attaq/mainwindow.cpp
@@ -56,6 +56,7 @@
 #include <QGraphicsView>
 #include <QApplication>
 #include <QMenu>
+#include <QMenuBar>
 #include <QLayout>
 
 #ifndef QT_NO_OPENGL