diff --git a/grails-forge-web-netty/src/main/resources/application.yml b/grails-forge-web-netty/src/main/resources/application.yml
index 64d2b250..0e1baf32 100644
--- a/grails-forge-web-netty/src/main/resources/application.yml
+++ b/grails-forge-web-netty/src/main/resources/application.yml
@@ -11,7 +11,7 @@ micronaut:
         web:
           allowed-origins:
             - https://grails.github.io
-            - https://start.grails.org
+            - ${CORS_ALLOWED_ORIGIN:https://start.grails.org}
           allowedMethods:
             - GET
   http: