diff --git a/deployments/monitor/grafana/milvus-dashboard.json b/deployments/monitor/grafana/milvus-dashboard.json
index 98f85a582f..68d152e25a 100644
--- a/deployments/monitor/grafana/milvus-dashboard.json
+++ b/deployments/monitor/grafana/milvus-dashboard.json
@@ -3960,7 +3960,7 @@
       "dashLength": 10,
       "dashes": false,
       "datasource": "$datasource",
-      "description": "Number of heap bytes waiting to be used",
+      "description": "Number of heap bytes waiting to be used.",
       "fieldConfig": {
         "defaults": {
           "unit": "short"