diff --git a/src/widgets/kernel/qapplication.h b/src/widgets/kernel/qapplication.h
index 8f8abab3aa4..a0affe54cc2 100644
--- a/src/widgets/kernel/qapplication.h
+++ b/src/widgets/kernel/qapplication.h
@@ -99,9 +99,6 @@ public:
     static QStyle *style();
     static void setStyle(QStyle*);
     static QStyle *setStyle(const QString&);
-#if QT_DEPRECATED_SINCE(5, 0)
-    QT_DEPRECATED static inline void setGraphicsSystem(const QString &) {}
-#endif
 
     using QGuiApplication::palette;
     static QPalette palette(const QWidget *);