diff --git a/src/gui/kernel/qwindow.cpp b/src/gui/kernel/qwindow.cpp
index c1373b32248..082c0c6b8c5 100644
--- a/src/gui/kernel/qwindow.cpp
+++ b/src/gui/kernel/qwindow.cpp
@@ -2272,8 +2272,15 @@ bool QWindow::close()
     if (!d->platformWindow)
         return true;
 
-    QBoolBlocker inCloseReset(d->inClose);
-    return d->platformWindow->close();
+    // The window might be deleted during close,
+    // as a result of delivering the close event.
+    QPointer guard(this);
+    d->inClose = true;
+    bool success = d->platformWindow->close();
+    if (guard)
+        d->inClose = false;
+
+    return success;
 }
 
 bool QWindowPrivate::participatesInLastWindowClosed() const