diff --git a/README.md b/README.md
index e7deeef..e383e5e 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,12 @@ Source: [https://www.atlassian.com/git/tutorials/dotfiles]
 # Required tools
 xclip
 gtk3-nocsd (to disable client side decorations / window bars)
+## Prequisites
+edit /etc/pam.d/login
+WILL BE DEPRECATED SOME TIME!
+```sh
+session required pam_env.so user_readenv=1
+```
 ## Fonts
 * fonts-hack
 * fonts-powerline