diff --git a/src/gui/kernel/qwindow.cpp b/src/gui/kernel/qwindow.cpp
index f4a2059d74..65530f676a 100644
--- a/src/gui/kernel/qwindow.cpp
+++ b/src/gui/kernel/qwindow.cpp
@@ -1259,7 +1259,12 @@ void QWindow::resize(const QSize &newSize)
     if (d->platformWindow) {
         d->platformWindow->setGeometry(QRect(position(), newSize));
     } else {
+        const QSize oldSize = d->geometry.size();
         d->geometry.setSize(newSize);
+        if (newSize.width() != oldSize.width())
+            emit widthChanged(newSize.width());
+        if (newSize.height() != oldSize.height())
+            emit heightChanged(newSize.height());
     }
 }