diff --git a/api/@ohos.window.d.ts b/api/@ohos.window.d.ts
index 807152591..14ce05bfc 100644
--- a/api/@ohos.window.d.ts
+++ b/api/@ohos.window.d.ts
@@ -203,7 +203,16 @@ declare namespace window {
      * @StageModelOnly
      * @since 9
      */
-    TYPE_SCREENSHOT
+    TYPE_SCREENSHOT,
+    /**
+     * System Toast.
+     *
+     * @syscap SystemCapability.WindowManager.WindowManager.Core
+     * @systemapi Hide this for inner system use.
+     * @StageModelOnly
+     * @since 11
+     */
+    TYPE_SYSTEM_TOAST
   }
 
   /**