diff --git a/azure/services/managedclusters/spec.go b/azure/services/managedclusters/spec.go
index c0ba8520d34..a88c55d5cba 100644
--- a/azure/services/managedclusters/spec.go
+++ b/azure/services/managedclusters/spec.go
@@ -62,7 +62,7 @@ type ManagedClusterSpec struct {
 	// NetworkPlugin used for building Kubernetes network. Possible values include: 'azure', 'kubenet'. Defaults to azure.
 	NetworkPlugin string
 
-	// NetworkPolicy used for building Kubernetes network. Possible values include: 'calico', 'azure'. Defaults to azure.
+	// NetworkPolicy used for building Kubernetes network. Possible values include: 'calico', 'azure'.
 	NetworkPolicy string
 
 	// SSHPublicKey is a string literal containing an ssh public key. Will autogenerate and discard if not provided.
diff --git a/exp/api/v1beta1/azuremanagedcontrolplane_webhook.go b/exp/api/v1beta1/azuremanagedcontrolplane_webhook.go
index 3bd0ec5edc5..6badeb8e133 100644
--- a/exp/api/v1beta1/azuremanagedcontrolplane_webhook.go
+++ b/exp/api/v1beta1/azuremanagedcontrolplane_webhook.go
@@ -68,10 +68,6 @@ func (m *AzureManagedControlPlane) Default(_ client.Client) {
 		loadBalancerSKU := "Standard"
 		m.Spec.LoadBalancerSKU = &loadBalancerSKU
 	}
-	if m.Spec.NetworkPolicy == nil {
-		NetworkPolicy := "calico"
-		m.Spec.NetworkPolicy = &NetworkPolicy
-	}
 
 	if m.Spec.Version != "" && !strings.HasPrefix(m.Spec.Version, "v") {
 		normalizedVersion := "v" + m.Spec.Version
diff --git a/exp/api/v1beta1/azuremanagedcontrolplane_webhook_test.go b/exp/api/v1beta1/azuremanagedcontrolplane_webhook_test.go
index b27936f5758..0d5ed4210cd 100644
--- a/exp/api/v1beta1/azuremanagedcontrolplane_webhook_test.go
+++ b/exp/api/v1beta1/azuremanagedcontrolplane_webhook_test.go
@@ -45,7 +45,6 @@ func TestDefaultingWebhook(t *testing.T) {
 	amcp.Default(nil)
 	g.Expect(*amcp.Spec.NetworkPlugin).To(Equal("azure"))
 	g.Expect(*amcp.Spec.LoadBalancerSKU).To(Equal("Standard"))
-	g.Expect(*amcp.Spec.NetworkPolicy).To(Equal("calico"))
 	g.Expect(amcp.Spec.Version).To(Equal("v1.17.5"))
 	g.Expect(amcp.Spec.SSHPublicKey).NotTo(BeEmpty())
 	g.Expect(amcp.Spec.NodeResourceGroupName).To(Equal("MC_fooRg_fooName_fooLocation"))