diff --git a/blueprints/kutt/docker-compose.yml b/blueprints/kutt/docker-compose.yml
index 5ee1b971..947f4d26 100644
--- a/blueprints/kutt/docker-compose.yml
+++ b/blueprints/kutt/docker-compose.yml
@@ -7,7 +7,7 @@ services:
     environment:
       DB_FILENAME: "/var/lib/kutt/data.sqlite"
       JWT_SECRET: ${JWT_SECRET}
-      DEFAULT_DOMAIN: ${DOMAIN}
+      DEFAULT_DOMAIN: ${DEFAULT_DOMAIN}
       TRUST_PROXY: ${TRUST_PROXY}
       DISALLOW_ANONYMOUS_LINKS: ${DISALLOW_ANONYMOUS_LINKS}
       CUSTOM_DOMAIN_USE_HTTPS: ${CUSTOM_DOMAIN_USE_HTTPS}