diff --git a/docker-compose.yml b/docker-compose.yml
index ad8cc97a..5ceb8077 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -5,8 +5,8 @@ x-environment: &oncall-environment
   BROKER_TYPE: redis
   BASE_URL: $DOMAIN
   SECRET_KEY: $SECRET_KEY
-  FEATURE_PROMETHEUS_EXPORTER_ENABLED: $FEATURE_PROMETHEUS_EXPORTER_ENABLED
-  PROMETHEUS_EXPORTER_SECRET: $PROMETHEUS_EXPORTER_SECRET
+  FEATURE_PROMETHEUS_EXPORTER_ENABLED: ${FEATURE_PROMETHEUS_EXPORTER_ENABLED:-false}
+  PROMETHEUS_EXPORTER_SECRET: ${PROMETHEUS_EXPORTER_SECRET:-}
   REDIS_URI: redis://redis:6379/0
   DJANGO_SETTINGS_MODULE: settings.hobby
   CELERY_WORKER_QUEUE: "default,critical,long,slack,telegram,webhook,retry,celery"