diff --git a/src/gui/doc/snippets/code/src_gui_kernel_qapplication.cpp b/src/gui/doc/snippets/code/src_gui_kernel_qapplication.cpp
index f1f51c0582..138d0dfa1b 100644
--- a/src/gui/doc/snippets/code/src_gui_kernel_qapplication.cpp
+++ b/src/gui/doc/snippets/code/src_gui_kernel_qapplication.cpp
@@ -91,7 +91,7 @@ int main(int argc, char *argv[])
 //! [3]
 QSize MyWidget::sizeHint() const
 {
-    return QSize(80, 25).expandedTo(QApplication::globalStrut());
+    return QSize(80, 25);
 }
 //! [3]
 
diff --git a/src/widgets/doc/snippets/code/src_gui_kernel_qapplication.cpp b/src/widgets/doc/snippets/code/src_gui_kernel_qapplication.cpp
index 5e1f0883e7..a7bce6d378 100644
--- a/src/widgets/doc/snippets/code/src_gui_kernel_qapplication.cpp
+++ b/src/widgets/doc/snippets/code/src_gui_kernel_qapplication.cpp
@@ -93,7 +93,7 @@ int main(int argc, char *argv[])
 //! [3]
 QSize MyWidget::sizeHint() const
 {
-    return QSize(80, 25).expandedTo(QApplication::globalStrut());
+    return QSize(80, 25);
 }
 //! [3]
 
diff --git a/src/widgets/kernel/qapplication.cpp b/src/widgets/kernel/qapplication.cpp
index eea97b2c0b..842c0ea9e6 100644
--- a/src/widgets/kernel/qapplication.cpp
+++ b/src/widgets/kernel/qapplication.cpp
@@ -1224,6 +1224,7 @@ void QApplication::setColorSpec(int spec)
     \property QApplication::globalStrut
     \brief the minimum size that any GUI element that the user can interact
            with should have
+    \deprecated
 
     For example, no button should be resized to be smaller than the global
     strut size. The strut size should be considered when reimplementing GUI
diff --git a/src/widgets/kernel/qapplication.h b/src/widgets/kernel/qapplication.h
index 27e743a28d..6de72899f1 100644
--- a/src/widgets/kernel/qapplication.h
+++ b/src/widgets/kernel/qapplication.h
@@ -79,7 +79,9 @@ class Q_WIDGETS_EXPORT QApplication : public QGuiApplication
 #if QT_CONFIG(wheelevent)
     Q_PROPERTY(int wheelScrollLines  READ wheelScrollLines WRITE setWheelScrollLines)
 #endif
+#if QT_DEPRECATED_SINCE(5, 15)
     Q_PROPERTY(QSize globalStrut READ globalStrut WRITE setGlobalStrut)
+#endif
     Q_PROPERTY(int startDragTime  READ startDragTime WRITE setStartDragTime)
     Q_PROPERTY(int startDragDistance  READ startDragDistance WRITE setStartDragDistance)
 #ifndef QT_NO_STYLE_STYLESHEET
@@ -158,8 +160,10 @@ public:
     static void setWheelScrollLines(int);
     static int wheelScrollLines();
 #endif
+#if QT_DEPRECATED_SINCE(5, 15)
     static void setGlobalStrut(const QSize &);
     static QSize globalStrut();
+#endif
 
     static void setStartDragTime(int ms);
     static int startDragTime();