diff --git a/examples/widgets/widgets/tablet/tabletcanvas.cpp b/examples/widgets/widgets/tablet/tabletcanvas.cpp
index 9a8029486de..59ca608cef4 100644
--- a/examples/widgets/widgets/tablet/tabletcanvas.cpp
+++ b/examples/widgets/widgets/tablet/tabletcanvas.cpp
@@ -53,6 +53,7 @@
 #include <QCoreApplication>
 #include <QPainter>
 #include <QtMath>
+#include <cstdlib>
 
 //! [0]
 TabletCanvas::TabletCanvas()