diff --git a/README.md b/README.md
index 820535e..db673ab 100644
--- a/README.md
+++ b/README.md
@@ -88,7 +88,12 @@ The ports for Redis, PostgreSQL and Unicorn can be overriden in
 ```ruby
 redis['port'] = 1234
 postgresql['port'] = 2345
+
+# due to a bug https://gitlab.com/gitlab-org/omnibus-gitlab/issues/141
+# you have to provide the port for gitlab shell as well,
+# so the 2 following lines have to point to the same port
 unicorn['port'] = 3456
+gitlab_rails['internal_api_url'] = 'http://localhost:3456'
 ```
 
 For Nginx port changes please see the section on enabling HTTPS below.
--
libgit2 0.21.2