1 files changed, 2 insertions, 1 deletions
diff --git a/src/plugins/platforms/cocoa/qnsview.mm b/src/plugins/platforms/cocoa/qnsview.mm
index 7834c2991d..a72cbd010a 100644
--- a/src/plugins/platforms/cocoa/qnsview.mm
+++ b/src/plugins/platforms/cocoa/qnsview.mm
@@ -443,7 +443,8 @@ static bool _q_dontOverrideCtrlLMB = false;
             NSUInteger screenIndex = [[NSScreen screens] indexOfObject:self.window.screen];
             if (screenIndex != NSNotFound) {
                 QCocoaScreen *cocoaScreen = QCocoaIntegration::instance()->screenAtIndex(screenIndex);
-                QWindowSystemInterface::handleWindowScreenChanged(m_window, cocoaScreen->screen());
+                if (cocoaScreen)
+                    QWindowSystemInterface::handleWindowScreenChanged(m_window, cocoaScreen->screen());
                 m_platformWindow->updateExposedGeometry();
             }
         }