diff --git a/docker-stack.yml b/docker-stack.yml
index 3f39f75..7ec58a2 100644
--- a/docker-stack.yml
+++ b/docker-stack.yml
@@ -213,7 +213,7 @@ services:
   inbucket:
     image: inbucket/inbucket
     networks:
-      ocis-net:
+      - ocis-net
     entrypoint:
       - /bin/sh
     command: [ "-c", "apk add openssl; openssl req -subj '/CN=inbucket.test' -x509 -sha256 -nodes -days 365 -newkey rsa:2048 -keyout /tmp/server.key -out /tmp/server.crt; /start-inbucket.sh" ]