diff --git a/hosts/prometheus/rules.yaml b/hosts/prometheus/rules.yaml
index 45e5b2a1..532fbeff 100644
--- a/hosts/prometheus/rules.yaml
+++ b/hosts/prometheus/rules.yaml
@@ -2,7 +2,7 @@ groups:
   - name: default
     rules:
     - alert: oom_kills
-      expr: round(increase(node_vmstat_oom_kill[7d])) >= 1
+      expr: round(increase(node_vmstat_oom_kill[1d])) >= 1
       for: 10m
       labels:
         severity: error