diff --git a/src/plugins/platforms/cocoa/qcocoawindow.mm b/src/plugins/platforms/cocoa/qcocoawindow.mm
index d9043979d6d..19c4faf3691 100644
--- a/src/plugins/platforms/cocoa/qcocoawindow.mm
+++ b/src/plugins/platforms/cocoa/qcocoawindow.mm
@@ -486,7 +486,7 @@ void QCocoaWindow::setWindowFlags(Qt::WindowFlags flags)
 
 void QCocoaWindow::setWindowState(Qt::WindowState state)
 {
-    if ([m_nsWindow isVisible])
+    if (window()->isVisible())
         syncWindowState(state);  // Window state set for hidden windows take effect when show() is called.
 }