diff --git a/src/plugins/platforms/cocoa/qcocoawindow.mm b/src/plugins/platforms/cocoa/qcocoawindow.mm
index 1de8577ebe..b2d1a80097 100644
--- a/src/plugins/platforms/cocoa/qcocoawindow.mm
+++ b/src/plugins/platforms/cocoa/qcocoawindow.mm
@@ -218,6 +218,7 @@ QCocoaWindow::~QCocoaWindow()
     }
 
     [m_view release];
+    [m_nsWindow close];
     [m_nsWindow release];
 }