diff --git a/assets/grafana/all-nodes-dashboard.json b/assets/grafana/all-nodes-dashboard.json
index 94d9d4ebc125f027808090c0e6435225dd6ae0b1..7a7c2bde52a2860dae69b1d5784f8e67ab13a6dd 100644
--- a/assets/grafana/all-nodes-dashboard.json
+++ b/assets/grafana/all-nodes-dashboard.json
@@ -405,8 +405,9 @@
           },
           "targets": [
             {
-              "expr": "((sum(node_memory_MemTotal) - sum(node_memory_MemFree)) / sum(node_memory_MemTotal)) * 100",
+              "expr": "((sum(node_memory_MemTotal) - sum(node_memory_MemFree) - sum(node_memory_Buffers) - sum(node_memory_Cached)) / sum(node_memory_MemTotal)) * 100",
               "intervalFactor": 2,
+              "metric": "",
               "refId": "A",
               "step": 60,
               "target": ""