diff --git a/README.md b/README.md
index 6278ff9..98c67f6 100644
--- a/README.md
+++ b/README.md
@@ -49,13 +49,13 @@ nix flake init -t github:hercules-ci/flake-parts
 
 Otherwise, add the input,
 
-```
+```nix
     flake-parts.url = "github:hercules-ci/flake-parts";
 ```
 
 then slide `mkFlake` between your outputs function head and body,
 
-```
+```nix
   outputs = inputs@{ flake-parts, ... }:
     flake-parts.lib.mkFlake { inherit inputs; } {
       flake = {