diff --git a/packages/@aws-cdk/region-info/build-tools/fact-tables.ts b/packages/@aws-cdk/region-info/build-tools/fact-tables.ts
index 16124517c2d5e..6520348d3e2ad 100644
--- a/packages/@aws-cdk/region-info/build-tools/fact-tables.ts
+++ b/packages/@aws-cdk/region-info/build-tools/fact-tables.ts
@@ -65,6 +65,7 @@ export const ROUTE_53_BUCKET_WEBSITE_ZONE_IDS: { [region: string]: string } = {
   'eu-west-2': 'Z3GKZC51ZF0DB4',
   'eu-west-3': 'Z3R1K369G5AVDG',
   'eu-north-1': 'Z3BAZG2TWCNX0D',
+  'eu-south-1': 'Z3IXVV8C73GIO3',
   'sa-east-1': 'Z7KQH4QJS55SO',
   'me-south-1': 'Z1MPMWCPA7YB62',
 };