diff --git a/compose.yml b/compose.yml
index 4b57c10..9dce544 100644
--- a/compose.yml
+++ b/compose.yml
@@ -29,7 +29,7 @@ x-environment: &default-env
   - KEYCLOAK_URL=${KEYCLOAK_URL}
   - MAIL_FROM=${MAIL_FROM}
   - MAIL_TO=${MAIL_TO}
-  - MONGODB_ADDR="db:27017"
+  - MONGODB_ADDR=db:27017
   - MONGODB_NAME=alerta
   - MONGODB_TYPE=mongodb
   - MONGODB_USER=alerta