diff --git a/packages/aws-cdk-lib/region-info/build-tools/metadata.ts b/packages/aws-cdk-lib/region-info/build-tools/metadata.ts
index 0ef7b18fb82a2..58a7436ec118b 100644
--- a/packages/aws-cdk-lib/region-info/build-tools/metadata.ts
+++ b/packages/aws-cdk-lib/region-info/build-tools/metadata.ts
@@ -20,6 +20,7 @@ export const AWS_CDK_METADATA = new Set([
   'ap-southeast-3',
   'ap-southeast-4',
   'ca-central-1',
+  'ca-west-1',
   'cn-north-1',
   'cn-northwest-1',
   'eu-central-1',