diff --git a/charts/t8s-cluster/templates/management-cluster/clusterClass/kubeadmnControlPlaneTemplate/_kubeadmControlPlaneTemplateSpec.yaml b/charts/t8s-cluster/templates/management-cluster/clusterClass/kubeadmnControlPlaneTemplate/_kubeadmControlPlaneTemplateSpec.yaml
index 100c6c272..ec3971d2d 100644
--- a/charts/t8s-cluster/templates/management-cluster/clusterClass/kubeadmnControlPlaneTemplate/_kubeadmControlPlaneTemplateSpec.yaml
+++ b/charts/t8s-cluster/templates/management-cluster/clusterClass/kubeadmnControlPlaneTemplate/_kubeadmControlPlaneTemplateSpec.yaml
@@ -11,6 +11,7 @@ clusterConfiguration:
       enable-admission-plugins: AlwaysPullImages,EventRateLimit,NodeRestriction
       profiling: 'false'
       tls-cipher-suites: {{ include "t8s-cluster.clusterClass.tlsCipherSuites" (dict) }}
+      event-ttl: 4h
     extraVolumes:
       - hostPath: *admissionControlConfigFilePath
         mountPath: *admissionControlConfigFilePath