diff --git a/packages/aws-cdk-lib/aws-route53/README.md b/packages/aws-cdk-lib/aws-route53/README.md
index e95045bfc9428..9f90f7e17643f 100644
--- a/packages/aws-cdk-lib/aws-route53/README.md
+++ b/packages/aws-cdk-lib/aws-route53/README.md
@@ -208,7 +208,7 @@ declare const myZone: route53.HostedZone;
 
 const record1 = new route53.ARecord(this, 'ARecordIpBased1', {
   zone: myZone,
-  recordName: 'test',
+  recordName: 'xxx',
   target: route53.RecordTarget.fromIpAddresses('1.2.3.4'),
   cidrRoutingConfig: {
     cidrList: ['192.168.1.0/24', '192.168.16.0/20'],
@@ -221,7 +221,7 @@ const record1 = new route53.ARecord(this, 'ARecordIpBased1', {
 // Ensure all locations for the same record set name and type are part of the same CIDR collection to guarantee consistent routing.
 const record2 = new route53.ARecord(this, 'ARecordIpBased2', {
   zone: myZone,
-  recordName: 'test',
+  recordName: 'xxx',
   target: route53.RecordTarget.fromIpAddresses('2.3.4.5'),
   cidrRoutingConfig: {
     cidrList: ['192.168.2.0/24', '192.168.48.0/20'],
diff --git a/packages/aws-cdk-lib/aws-route53/lib/record-set.ts b/packages/aws-cdk-lib/aws-route53/lib/record-set.ts
index c5ecaf45c0589..733a79ec9ae02 100644
--- a/packages/aws-cdk-lib/aws-route53/lib/record-set.ts
+++ b/packages/aws-cdk-lib/aws-route53/lib/record-set.ts
@@ -343,7 +343,7 @@ export class RecordSet extends Resource implements IRecordSet {
   private readonly region?: string;
   private readonly multiValueAnswer?: boolean;
   private cidrLocation?: CfnRecordSet.CidrRoutingConfigProperty;
-  private _cidrCollection: CfnCidrCollection | undefined;
+  private _cidrCollection?: CfnCidrCollection;
 
   constructor(scope: Construct, id: string, props: RecordSetProps) {
     super(scope, id);