diff --git a/source/tutorials/cross-compilation.md b/source/tutorials/cross-compilation.md
index 0aab26a..4286449 100644
--- a/source/tutorials/cross-compilation.md
+++ b/source/tutorials/cross-compilation.md
@@ -85,6 +85,13 @@ It's only possible to cross compile between `aarch64-darwin` and `x86_64-darwin`
 
 It is possible to explore them in `nix repl`:
 
+:::{note}
+Later versions of `nix repl` require `-f` flag:
+```shell-session
+$ nix repl -f '<nixpkgs>' -I nixpkgs=channel:nixos-23.11
+```
+:::
+
 ```shell-session
 $ nix repl '<nixpkgs>' -I nixpkgs=channel:nixos-23.11
 Welcome to Nix 2.18.1. Type :? for help.