diff --git a/pkg/cmd/install/hubaddon/exec.go b/pkg/cmd/install/hubaddon/exec.go
index ec9ebcf53..06a8ce476 100644
--- a/pkg/cmd/install/hubaddon/exec.go
+++ b/pkg/cmd/install/hubaddon/exec.go
@@ -104,6 +104,7 @@ func (o *Options) runWithClient() error {
 				"addon/appmgr/service_account.yaml",
 				"addon/appmgr/service_metrics.yaml",
 				"addon/appmgr/service_operator.yaml",
+				"addon/appmgr/mutatingwebhookconfiguration.yaml",
 			}
 
 			err := r.Apply(scenario.Files, o.values, files...)
diff --git a/pkg/cmd/install/hubaddon/scenario/addon/appmgr/mutatingwebhookconfiguration.yaml b/pkg/cmd/install/hubaddon/scenario/addon/appmgr/mutatingwebhookconfiguration.yaml
new file mode 100644
index 000000000..aa2fe6190
--- /dev/null
+++ b/pkg/cmd/install/hubaddon/scenario/addon/appmgr/mutatingwebhookconfiguration.yaml
@@ -0,0 +1,5 @@
+# Copyright Contributors to the Open Cluster Management project
+apiVersion: admissionregistration.k8s.io/v1
+kind: MutatingWebhookConfiguration
+metadata:
+  name: ocm-mutating-webhook