diff --git a/nix/nixos-modules/frontend/default.nix b/nix/nixos-modules/frontend/default.nix
index 3fb8829..e1f813b 100644
--- a/nix/nixos-modules/frontend/default.nix
+++ b/nix/nixos-modules/frontend/default.nix
@@ -395,6 +395,7 @@ in
       };
 
       printing = {
+        # cups
         enable = true;
         cups-pdf = {
           enable = true;