diff --git a/flake-latex.nix b/flake-latex.nix
index da5706d..4b80a77 100644
--- a/flake-latex.nix
+++ b/flake-latex.nix
@@ -1,3 +1,5 @@
+# Taken from https://flyx.org/nix-flakes-latex/
+
 {
   description = "LaTeX Document Demo";
   inputs = {