diff --git a/lib/module.nix b/lib/module.nix
index 63f89a7..16efd0a 100644
--- a/lib/module.nix
+++ b/lib/module.nix
@@ -30,6 +30,7 @@ in {
           generator = mkOption {
             type = types.enum ["nix" "string" "derivation" "gotmpl" "jinja" "template"];
             description = "Which engine to use for content generation";
+            default = "nix";
           };
 
           data = mkOption {
@@ -211,7 +212,7 @@ in {
             fi
 
             # Insert the file path before the end comment
-            ${pkgs.gnused}/bin/sed -i "/# end soonix/i $file" "$gitignore"
+            ${pkgs.gnused}/bin/sed -i "/# end soonix/i /$file" "$gitignore"
           fi
         }