diff --git a/README.md b/README.md
index 556b14e..001f19b 100644
--- a/README.md
+++ b/README.md
@@ -3,3 +3,5 @@
 ## MUST DO:
 Run the following before trying this config:
 ```sudo nix-channel --add https://nixos.org/channels/nixos-unstable nixos-unstable```
+and then
+```sudo nix-channel --update```