diff --git a/meta/verify.nix b/meta/verify.nix
index 4b6cef2..09f9691 100644
--- a/meta/verify.nix
+++ b/meta/verify.nix
@@ -1,3 +1,5 @@
+# Nix expression to check if meta module is evaluating correctly.
+# To do so run `nix-build ./verify.nix`
 let
   sources = import ../npins;
   pkgs = import sources.nixpkgs { };