diff --git a/panels/dock/taskmanager/treelandwindow.cpp b/panels/dock/taskmanager/treelandwindow.cpp
index 9517e3add..36b7619a4 100644
--- a/panels/dock/taskmanager/treelandwindow.cpp
+++ b/panels/dock/taskmanager/treelandwindow.cpp
@@ -107,6 +107,7 @@ void ForeignToplevelHandle::treeland_foreign_toplevel_handle_v1_done()
 }
 void ForeignToplevelHandle::treeland_foreign_toplevel_handle_v1_closed()
 {
+    destroy();
     Q_EMIT handlerIsDeleted();
 }