diff --git a/src/widgets/widgets/qtoolbarextension.cpp b/src/widgets/widgets/qtoolbarextension.cpp
index 47cf16e0cc7..bbe7eddaa49 100644
--- a/src/widgets/widgets/qtoolbarextension.cpp
+++ b/src/widgets/widgets/qtoolbarextension.cpp
@@ -38,7 +38,7 @@
 ****************************************************************************/
 
 #include "qtoolbarextension_p.h"
-#include <qpixmap.h>
+#include <qevent.h>
 #include <qstyle.h>
 #include <qstylepainter.h>
 #include <qstyleoption.h>
@@ -47,10 +47,11 @@ QT_BEGIN_NAMESPACE
 
 QToolBarExtension::QToolBarExtension(QWidget *parent)
     : QToolButton(parent)
+    , m_orientation(Qt::Horizontal)
 {
     setObjectName(QLatin1String("qt_toolbar_ext_button"));
     setAutoRaise(true);
-    setOrientation(Qt::Horizontal);
+    setOrientation(m_orientation);
     setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
     setCheckable(true);
 }
@@ -63,7 +64,8 @@ void QToolBarExtension::setOrientation(Qt::Orientation o)
         setIcon(style()->standardIcon(QStyle::SP_ToolBarHorizontalExtensionButton, &opt));
     } else {
         setIcon(style()->standardIcon(QStyle::SP_ToolBarVerticalExtensionButton, &opt));
-   }
+    }
+    m_orientation = o;
 }
 
 void QToolBarExtension::paintEvent(QPaintEvent *)
@@ -83,6 +85,18 @@ QSize QToolBarExtension::sizeHint() const
     return QSize(ext, ext);
 }
 
+bool QToolBarExtension::event(QEvent *event)
+{
+    switch (event->type()) {
+    case QEvent::LayoutDirectionChange:
+        setOrientation(m_orientation);
+        break;
+    default:
+        break;
+    }
+    return QToolButton::event(event);
+}
+
 QT_END_NAMESPACE
 
 #include "moc_qtoolbarextension_p.cpp"
diff --git a/src/widgets/widgets/qtoolbarextension_p.h b/src/widgets/widgets/qtoolbarextension_p.h
index a388f1e40f0..146e0e58c14 100644
--- a/src/widgets/widgets/qtoolbarextension_p.h
+++ b/src/widgets/widgets/qtoolbarextension_p.h
@@ -69,6 +69,12 @@ class Q_AUTOTEST_EXPORT QToolBarExtension : public QToolButton
 
 public Q_SLOTS:
     void setOrientation(Qt::Orientation o);
+
+protected:
+    bool event(QEvent *e) override;
+
+private:
+    Qt::Orientation m_orientation;
 };
 
 QT_END_NAMESPACE