diff --git a/docker/moodle/moodle.yml b/docker/moodle/moodle.yml
index aa9ea4e..6a9a8d4 100644
--- a/docker/moodle/moodle.yml
+++ b/docker/moodle/moodle.yml
@@ -17,6 +17,7 @@ services:
       - isard-apps-postgresql
     environment:
       - MOODLE_VERSION=${MOODLE_VERSION}
+      - DOMAIN=${DOMAIN}
       - SITE_URL=https://moodle.${DOMAIN}
       - DB_TYPE=pgsql
       - DB_HOST=isard-apps-postgresql