diff --git a/src/main_window.cpp b/src/main_window.cpp
index e1837a42..9134b1f1 100755
--- a/src/main_window.cpp
+++ b/src/main_window.cpp
@@ -1660,7 +1660,7 @@ void MainWindow::topWindow()
         // 经DTK确认，type存在bug。用flags替换，获取窗口类型功能。bug 77300；
         if (window->flags().testFlag(Qt::Window) || window->flags().testFlag(Qt::Desktop)) {
             // 排除dde-dock作为顶层窗口
-            if (window->wmClass() == "dde-dock") {
+            if (window->wmClass() == "dde-dock" || window->wmClass() == "dde-shell") {
                 continue;
             }
             //判断窗口是否被最小化