diff --git a/content/docs/6.1/deploy/monitor/alert.md b/content/docs/6.1/deploy/monitor/alert.md
index 20e7b28b..07a43b08 100644
--- a/content/docs/6.1/deploy/monitor/alert.md
+++ b/content/docs/6.1/deploy/monitor/alert.md
@@ -27,7 +27,7 @@ This section gives the alert rules for the PD component.
 
 ### Emergency-level alerts
 
-#### `PD_cluster_offline_tikv_nums`
+#### `PD_cluster_down_tikv_nums`
 
 * Alert rule:
 
diff --git a/content/docs/6.5/deploy/monitor/alert.md b/content/docs/6.5/deploy/monitor/alert.md
index 5bc8e812..f666ab77 100644
--- a/content/docs/6.5/deploy/monitor/alert.md
+++ b/content/docs/6.5/deploy/monitor/alert.md
@@ -27,7 +27,7 @@ This section gives the alert rules for the PD component.
 
 ### Emergency-level alerts
 
-#### `PD_cluster_offline_tikv_nums`
+#### `PD_cluster_down_tikv_nums`
 
 * Alert rule:
 
diff --git a/content/docs/7.1/deploy/monitor/alert.md b/content/docs/7.1/deploy/monitor/alert.md
index 29ffe690..b1756762 100644
--- a/content/docs/7.1/deploy/monitor/alert.md
+++ b/content/docs/7.1/deploy/monitor/alert.md
@@ -27,7 +27,7 @@ This section gives the alert rules for the PD component.
 
 ### Emergency-level alerts
 
-#### `PD_cluster_offline_tikv_nums`
+#### `PD_cluster_down_tikv_nums`
 
 * Alert rule:
 
diff --git a/content/docs/dev/deploy/monitor/alert.md b/content/docs/dev/deploy/monitor/alert.md
index caf3ee84..108c07a1 100644
--- a/content/docs/dev/deploy/monitor/alert.md
+++ b/content/docs/dev/deploy/monitor/alert.md
@@ -27,7 +27,7 @@ This section gives the alert rules for the PD component.
 
 ### Emergency-level alerts
 
-#### `PD_cluster_offline_tikv_nums`
+#### `PD_cluster_down_tikv_nums`
 
 * Alert rule: