diff --git a/nix/culr-module.nix b/nix/culr-module.nix
index a9821e7..e7fc00b 100644
--- a/nix/culr-module.nix
+++ b/nix/culr-module.nix
@@ -27,7 +27,7 @@ in {
       CULR_PATTERN = let
         serialise = {
           list = list: concatStringsSep ";";
-          str = s: s;
+          string = s: s;
         };
       in
         mkIf (cfg.pattern != "" && cfg.pattern != [])