diff --git a/typescript/core/widget.ts b/typescript/core/widget.ts
index fa945cb7c..5992ce01c 100644
--- a/typescript/core/widget.ts
+++ b/typescript/core/widget.ts
@@ -69,11 +69,6 @@ export interface _Widget extends _OB {
      */
     _manualSetValid: boolean;
 
-    /**
-     * 渲染引擎
-     */
-    _renderEngine: RenderEngine;
-
     _store(): void;
 
     // 生命周期函数