diff --git a/docker-compose.yml b/docker-compose.yml
index a67d871..77f45c6 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -19,9 +19,10 @@ services:
     container_name: collabora
     image: collabora/code
     environment:
-      domain: ${NEXTCLOUD_DOMAIN}
-      username: ${LO_ONLINE_USERNAME}
-      password: ${LO_ONLINE_PASSWORD}
+      - domain=${NEXTCLOUD_DOMAIN}
+      - username=${LO_ONLINE_USERNAME}
+      - password=${LO_ONLINE_PASSWORD}
+      - DONT_GEN_SSL_CERT=True
     cap_add:
       - MKNOD
     ports: