diff --git a/controllers/controlplane/kopscontrolplane_controller.go b/controllers/controlplane/kopscontrolplane_controller.go
index 09f5c1f..a0da490 100644
--- a/controllers/controlplane/kopscontrolplane_controller.go
+++ b/controllers/controlplane/kopscontrolplane_controller.go
@@ -763,7 +763,7 @@ func (r *KopsControlPlaneReconciler) reconcileKopsMachinePool(ctx context.Contex
 // GetASGByName returns the existing ASG or nothing if it doesn't exist.
 func GetASGByName(kopsMachinePool *infrastructurev1alpha1.KopsMachinePool, kopsControlPlane *controlplanev1alpha1.KopsControlPlane, creds *aws.Credentials) (*asgTypes.AutoScalingGroup, error) {
 	ctx := context.TODO()
-	region, err := regionBySubnet(kopsControlPlane)
+	region, err := RegionBySubnet(kopsControlPlane)
 	if err != nil {
 		return nil, err
 	}
diff --git a/controllers/controlplane/kopscontrolplane_controller_test.go b/controllers/controlplane/kopscontrolplane_controller_test.go
index ead36c7..1042508 100644
--- a/controllers/controlplane/kopscontrolplane_controller_test.go
+++ b/controllers/controlplane/kopscontrolplane_controller_test.go
@@ -1255,7 +1255,7 @@ func TestGetRegionBySubnet(t *testing.T) {
 	for _, tc := range testCases {
 		kcp := &controlplanev1alpha1.KopsControlPlane{}
 		kcp.Spec.KopsClusterSpec.Subnets = tc.input
-		region, err := regionBySubnet(kcp)
+		region, err := RegionBySubnet(kcp)
 
 		t.Run(tc.description, func(t *testing.T) {
 			if tc.expectedError {