diff --git a/oap-server/server-bootstrap/src/main/resources/otel-oc-rules/istio-controlplane.yaml b/oap-server/server-bootstrap/src/main/resources/otel-oc-rules/istio-controlplane.yaml
index dec2498f9..d32cf5a23 100644
--- a/oap-server/server-bootstrap/src/main/resources/otel-oc-rules/istio-controlplane.yaml
+++ b/oap-server/server-bootstrap/src/main/resources/otel-oc-rules/istio-controlplane.yaml
@@ -28,8 +28,6 @@
 #    "-P6H3M"    -- parses as "-6 hours and -3 minutes"
 #    "-P-6H+3M"  -- parses as "+6 hours and -3 minutes"
 # </pre>
-group: istio
-defaultMetricLevel: service(['cluster', 'app'])
 expSuffix: tag({tags -> tags.cluster = 'istio-ctrl::' + tags.cluster}).service(['cluster', 'app'])
 metricPrefix: meter_istio
 metricsRules: