diff --git a/hosts/lab/guestbook.nix b/hosts/lab/guestbook.nix
index c55617e..c3a7edb 100644
--- a/hosts/lab/guestbook.nix
+++ b/hosts/lab/guestbook.nix
@@ -44,8 +44,8 @@
     };
 
     styles = {
-      templateFile = "./templates/default.html";
-      successTemplateFile = "./templates/success.html";
+      templateFile = ./templates/default.html;
+      successTemplateFile = ./templates/success.html;
       separator = "-----------";
       labels = {
         submit = "Submit";