diff --git a/src/widgets/widgets/qstackedwidget.cpp b/src/widgets/widgets/qstackedwidget.cpp
index 938cc22ee8d..754744cf673 100644
--- a/src/widgets/widgets/qstackedwidget.cpp
+++ b/src/widgets/widgets/qstackedwidget.cpp
@@ -15,7 +15,6 @@ class QStackedWidgetPrivate : public QFramePrivate
 public:
     QStackedWidgetPrivate():layout(nullptr){}
     QStackedLayout *layout;
-    bool blockChildAdd;
 };
 
 /*!