diff --git a/module/Zapret.nix b/module/Zapret.nix
index e9a2828..6396a5f 100644
--- a/module/Zapret.nix
+++ b/module/Zapret.nix
@@ -1,3 +1,4 @@
+# SOURCE: https://github.com/bol-van/zapret
 { lib, config, pkgs, util, ... }: with lib; let
 	cfg = config.module.zapret;