diff --git a/.github/workflows/terraform.yaml b/.github/workflows/terraform.yaml
index 58725846..fa08749a 100644
--- a/.github/workflows/terraform.yaml
+++ b/.github/workflows/terraform.yaml
@@ -39,6 +39,7 @@ jobs:
         bin/set-flightdeck-version ${{ github.ref_name }}
         bin/set-terraform-value attach_certificate_domains "[\"flightdeck-test.thoughtbot.com\"]"
         bin/set-terraform-value issue_certificate_domains '[]'
+        bin/set-terraform-value create_domain_aliases "[\"${{ github.ref_name }}.flightdeck-test.thoughtbot.com\"]"
         bin/set-template-var ACCOUNT_ID ${{ secrets.AWS_ACCOUNT_ID }}
         ORG_NAME=$(echo 'flightdeck-${{ github.ref_name }}' | cut -c1-20)
         set -x