diff --git a/docs/tutorials/getting-started.md b/docs/tutorials/getting-started.md
index fe5c48e53d..bcbeab8667 100644
--- a/docs/tutorials/getting-started.md
+++ b/docs/tutorials/getting-started.md
@@ -21,6 +21,18 @@ trusted-public-keys = [...] hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNG
 substituters = [...] https://hydra.iohk.io [...]
 ```
 
+If you're running NixOS, you need to add/update the following in your `/etc/nixos/configuration.nix` files instead.
+
+```
+# Binary Cache for Haskell.nix
+nix.binaryCachePublicKeys = [
+  "hydra.iohk.io:f/Ea+s+dFdN+3Y/G+FDgSq+a5NEWhJGzdjvKNGv0/EQ="
+];
+nix.binaryCaches = [
+  "https://hydra.iohk.io"
+];
+```
+
 This can be tricky to get setup properly. If you're still having trouble getting cache hits, consult the corresponding [troubleshooting section](../reference/troubleshooting#why-am-i-building-ghc).
 
 ## Scaffolding