diff --git a/xcb/dnotitlebarwindowhelper.cpp b/xcb/dnotitlebarwindowhelper.cpp
index 88465c0e..e7377691 100644
--- a/xcb/dnotitlebarwindowhelper.cpp
+++ b/xcb/dnotitlebarwindowhelper.cpp
@@ -81,6 +81,10 @@ DNoTitlebarWindowHelper::~DNoTitlebarWindowHelper()
 {
     g_pressPoint.remove(this);
 
+    if (VtableHook::hasVtable(m_window)) {
+        VtableHook::resetVtable(m_window);
+    }
+
     mapped.remove(qobject_cast<QWindow*>(parent()));
 
     if (m_window->handle()) { // 当本地窗口还存在时，移除设置过的窗口属性