diff --git a/docker-compose.yml b/docker-compose.yml
index b42ef00..621c6f9 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -35,7 +35,7 @@ services:
       - MEMCACHE_SERVERS=${MEMCACHE_SERVERS}
       - POSTGRESQL_USER=${POSTGRES_USER}
       - POSTGRESQL_PASS=${POSTGRES_PASS}
-      - REDIS_URL=${REDIS_URL
+      - REDIS_URL=${REDIS_URL}
     image: ${IMAGE_REPO}:zammad${VERSION}
     restart: on-failure
     volumes: