diff --git a/dist/rules/host-and-hardware/node-exporter.yml b/dist/rules/host-and-hardware/node-exporter.yml
index c63e0c8..fd27d81 100644
--- a/dist/rules/host-and-hardware/node-exporter.yml
+++ b/dist/rules/host-and-hardware/node-exporter.yml
@@ -23,7 +23,7 @@ groups:
         description: "The node is under heavy memory pressure. High rate of major page faults\n  VALUE = {{ $value }}\n  LABELS = {{ $labels }}"
 
     - alert: HostMemoryIsUnderutilized
-      expr: '(100 - (rate(node_memory_MemAvailable_bytes[30m]) / node_memory_MemTotal_bytes * 100) < 20) * on(instance) group_left (nodename) node_uname_info{nodename=~".+"}'
+      expr: '(100 - (avg_over_time(node_memory_MemAvailable_bytes[30m]) / node_memory_MemTotal_bytes * 100) < 20) * on(instance) group_left (nodename) node_uname_info{nodename=~".+"}'
       for: 1w
       labels:
         severity: info