diff --git a/doc/debian_build_doc.md b/doc/debian_build_doc.md
index 9f7d6d0a7..56a829a54 100644
--- a/doc/debian_build_doc.md
+++ b/doc/debian_build_doc.md
@@ -44,4 +44,5 @@ We also recommend to investigate
 
 Some additional suggestions:
 
-* Install application under dedicated user home directory, such as /home/registry/registry Handy to ssh in and start debugging.
+    * Install application under dedicated user home directory, such as /home/registry/registry Handy to ssh in and start debugging.
+    * Use Phusion Passenger [official debian packages](https://www.phusionpassenger.com/documentation/Users%20guide%20Apache.html#install_on_debian_ubuntu) NB! Passenger runtime does not depend on ruby version, tuhs you can use multiple different ruby version apps with same passenger install.