diff --git a/config/unicorn.rb.example b/config/unicorn.rb.example
index 502727fdfe4..e4e13426831 100644
--- a/config/unicorn.rb.example
+++ b/config/unicorn.rb.example
@@ -8,7 +8,13 @@
 # See http://unicorn.bogomips.org/Unicorn/Configurator.html for complete
 # documentation.
 
-# Uncomment and customize the next line to run in a non-root path
+# Uncomment and customize the last line to run in a non-root path
+# WARNING: This feature is known to work, but unsupported
+# Note that three settings need to be changed for this to work.
+# 1) In your application.rb file: config.relative_url_root = "/gitlab"
+# 2) In your gitlab.yml file: relative_url_root: /gitlab
+# 3) In your unicorn.rb: ENV['RAILS_RELATIVE_URL_ROOT'] = "/gitlab"
+#
 # ENV['RAILS_RELATIVE_URL_ROOT'] = "/gitlab"
 
 # Use at least one worker per core if you're on a dedicated server,