diff --git a/en/scale-a-tidb-cluster.md b/en/scale-a-tidb-cluster.md
index 8f714eaae..2b58e1467 100644
--- a/en/scale-a-tidb-cluster.md
+++ b/en/scale-a-tidb-cluster.md
@@ -211,7 +211,7 @@ Taking the `scheduling` microservice as an example, the steps for horizontal sca
 1. Modify the `replicas` value of the corresponding `TidbCluster` object to your desired value. For example, run the following command to set the `replicas` value of `scheduling` to `3`:
 
     ```shell
-    kubectl patch -n ${namespace} tc ${cluster_name} --type merge --patch '{"spec":{"pdms":{"name":"scheduling", "replicas":3}}}'
+    kubectl patch -n ${namespace} tc ${cluster_name} --type merge --patch '{"spec":{"pdms":[{"name":"scheduling", "replicas":3}]}}'
     ```
 
 2. Check whether the corresponding TiDB cluster configuration for the Kubernetes cluster is updated:
diff --git a/zh/scale-a-tidb-cluster.md b/zh/scale-a-tidb-cluster.md
index 7e8e6079c..3595d6eb4 100644
--- a/zh/scale-a-tidb-cluster.md
+++ b/zh/scale-a-tidb-cluster.md
@@ -200,7 +200,7 @@ PD 微服务通常用于解决 PD 出现性能瓶颈的问题，提高 PD 服务
 1. 按需修改 `TidbCluster` 对象的 `replicas` 值。例如，执行以下命令可将 `scheduling` 的 `replicas` 值设置为 `3`：
 
     ```shell
-    kubectl patch -n ${namespace} tc ${cluster_name} --type merge --patch '{"spec":{"pdms":{"name":"scheduling", "replicas":3}}}'
+    kubectl patch -n ${namespace} tc ${cluster_name} --type merge --patch '{"spec":{"pdms":[{"name":"scheduling", "replicas":3}]}}'
     ```
 
 2. 查看 Kubernetes 集群中对应的 TiDB 集群配置是否已对应更新：