diff --git a/templates/compose/grist.yaml b/templates/compose/grist.yaml
index e3b8ee70e..584d50872 100644
--- a/templates/compose/grist.yaml
+++ b/templates/compose/grist.yaml
@@ -9,6 +9,7 @@ services:
   grist:
     image: gristlabs/grist:latest
     environment:
+      - SERVICE_URL_GRIST_8484
       - APP_HOME_URL=${SERVICE_URL_GRIST}
       - APP_DOC_URL=${SERVICE_URL_GRIST}
       - GRIST_DOMAIN=${SERVICE_FQDN_GRIST}