diff --git a/README.md b/README.md
index ae357bf..7a79b73 100644
--- a/README.md
+++ b/README.md
@@ -18,9 +18,13 @@ Now you can install the packages we need:
 sudo add-apt-repository ppa:ubuntu-lxc/stable
 sudo add-apt-repository ppa:ubuntu-lxc/cgmanager-stable
 sudo apt-get update && sudo apt-get upgrade
-sudo apt-get install git nodejs npm lxc btrfs-tools lxctl lxc-templates uidmap
+sudo apt-get install git nodejs npm lxc btrfs-tools lxctl lxc-templates uidmap libpam-cgfs
 ```
 
+### may need this
+https://discuss.linuxcontainers.org/t/failed-creating-cgroups/272/10 looking more into it.
+
+
 remap `nodejs` to `node`:
 ```bash
 sudo ln -s /usr/bin/nodejs /usr/bin/node