diff --git a/modules/nixos/services/nginx/default.nix b/modules/nixos/services/nginx/default.nix
index dabeb2f..654fd77 100644
--- a/modules/nixos/services/nginx/default.nix
+++ b/modules/nixos/services/nginx/default.nix
@@ -189,7 +189,7 @@ in
 
   config = lib.mkIf cfg.enable {
     assertions = [ ]
-      ++ (lib.flip builtins.mapAttrsToList cfg.virtualHosts ({ subdomain, ... } @ args:
+      ++ (lib.flip lib.mapAttrsToList cfg.virtualHosts ({ subdomain, ... } @ args:
       let
         conflicts = [ "port" "root" "socket" "redirect" ];
         optionsNotNull = builtins.map (v: args.${v} != null) conflicts;