diff --git a/modules/nixos/tmpsys.nix b/modules/nixos/tmpsys.nix
index aba6fa5..2dd4723 100644
--- a/modules/nixos/tmpsys.nix
+++ b/modules/nixos/tmpsys.nix
@@ -18,7 +18,7 @@
   };
 
    # 将 /nix 目录绑定到持久化存储
-  fileSystems."/nix" = {
+  fileSystems."/nix" = lib.mkForce {
     device = "/dev/disk/by-label/nixos";  # 需要根据实际情况修改
     fsType = "btrfs";
         options = [ "bind" ];