diff --git a/assets/grafana/all-nodes-dashboard.json b/assets/grafana/all-nodes-dashboard.json
index 85e88b41d74253ba640bc92f46347cf7d6860ba0..33b683e3058440507a63863abe7ce4060e451ead 100644
--- a/assets/grafana/all-nodes-dashboard.json
+++ b/assets/grafana/all-nodes-dashboard.json
@@ -305,7 +305,7 @@
               "expr": "sum(node_memory_MemFree)",
               "interval": "",
               "intervalFactor": 2,
-              "legendFormat": "memory cached",
+              "legendFormat": "memory free",
               "metric": "memo",
               "refId": "D",
               "step": 4,