diff --git a/assets/prometheus/rules/kubernetes.rules.yaml b/assets/prometheus/rules/kubernetes.rules.yaml
index f13d0088a34aa3a177ca303dac5d8afdae2d8ebf..537079a456fb65f505ab9783db6e51384ede946a 100644
--- a/assets/prometheus/rules/kubernetes.rules.yaml
+++ b/assets/prometheus/rules/kubernetes.rules.yaml
@@ -25,7 +25,7 @@ groups:
     expr: sum(container_spec_cpu_shares{container_name!="POD",pod_name!=""}) / 1000
       / sum(machine_cpu_cores)
   - record: cluster:container_cpu_usage:ratio
-    expr: rate(container_cpu_usage_seconds_total{container_name!="POD",pod_name!=""}[5m])
+    expr: sum(rate(container_cpu_usage_seconds_total{container_name!="POD",pod_name!=""}[5m]))
       / sum(machine_cpu_cores)
   - record: apiserver_latency_seconds:quantile
     expr: histogram_quantile(0.99, rate(apiserver_request_latencies_bucket[5m])) /
diff --git a/manifests/prometheus/prometheus-k8s-rules.yaml b/manifests/prometheus/prometheus-k8s-rules.yaml
index 6493ff748f1dd598c5023ed6e6840970e8d2998e..c7d5736ebe07efeacffc648d6ffbf4f6b13587ab 100644
--- a/manifests/prometheus/prometheus-k8s-rules.yaml
+++ b/manifests/prometheus/prometheus-k8s-rules.yaml
@@ -406,7 +406,7 @@ data:
         expr: sum(container_spec_cpu_shares{container_name!="POD",pod_name!=""}) / 1000
           / sum(machine_cpu_cores)
       - record: cluster:container_cpu_usage:ratio
-        expr: rate(container_cpu_usage_seconds_total{container_name!="POD",pod_name!=""}[5m])
+        expr: sum(rate(container_cpu_usage_seconds_total{container_name!="POD",pod_name!=""}[5m]))
           / sum(machine_cpu_cores)
       - record: apiserver_latency_seconds:quantile
         expr: histogram_quantile(0.99, rate(apiserver_request_latencies_bucket[5m])) /