diff --git a/assets/grafana/node-dashboard.json b/assets/grafana/node-dashboard.json
index dd8c3d5e30ed8a3dbbc64f13854280a430361187..78a5bb378226f4b9054e8b83d95b1bc12514ac53 100644
--- a/assets/grafana/node-dashboard.json
+++ b/assets/grafana/node-dashboard.json
@@ -1,5 +1,6 @@
 {
-  "dashboard": {
+  "dashboard":
+{
   "__inputs": [
     {
       "name": "DS_PROMETHEUS",
@@ -297,7 +298,7 @@
             {
               "expr": "node_memory_Cached{instance=\"$server\"}",
               "intervalFactor": 2,
-              "legendFormat": "",
+              "legendFormat": "memory cached",
               "metric": "",
               "refId": "F",
               "step": 4
@@ -877,4 +878,3 @@
   ],
   "overwrite": true
 }
-