diff --git a/README.md b/README.md
index 50a8d3c..8c12c2c 100644
--- a/README.md
+++ b/README.md
@@ -50,7 +50,7 @@ On Alpine, `shadow` is needed for the user creation process during the install.
 ### NixOS
 Add the flake to your inputs and import the module. That is all you need.
 Here's an example of using the modules in a flake:
-```
+```nix
 # flake.nix
 {
   inputs = {