diff --git a/content/zh/learn/level_9/_index.md b/content/zh/learn/level_9/_index.md
index ebb9f560e..4b66f6298 100644
--- a/content/zh/learn/level_9/_index.md
+++ b/content/zh/learn/level_9/_index.md
@@ -1,5 +1,6 @@
 ---
 linkTitle: 第九章：Kubernetes 云原生可观测性
+weight: 9
 
 _build:
     render: false