diff --git a/docs/Deploy/deploy-fleet.md b/docs/Deploy/deploy-fleet.md
index b1771569a2..c5f611688e 100644
--- a/docs/Deploy/deploy-fleet.md
+++ b/docs/Deploy/deploy-fleet.md
@@ -125,7 +125,7 @@ This workflow takes about 30 minutes to complete and supports between 10 and 350
     terraform apply -target aws_route53_zone.main
     ```
 
-9. From the Terminal output, obtain the NS records created for the zone and add them to the parent DNS zone in the AWS Route 53 GUI.
+9. From the Terminal output, obtain the NS records created for the zone and add them to the parent DNS zone in the AWS Route 53 GUI. Ensure you're *adding* the subdomain and its NS records to the parent DNS, not changing the NS records for the parent. For example: if the subdomain is `fleet.acme.com` and the NS record is `ns-420.awsdns-52.com`, *add* this record to the parent domain. 
 
 10. Run the following command in Terminal: