diff --git a/modules/services/misc/nix-daemon.nix b/modules/services/misc/nix-daemon.nix
index 8f1bfd3ccaad..f3ebf0a34188 100644
--- a/modules/services/misc/nix-daemon.nix
+++ b/modules/services/misc/nix-daemon.nix
@@ -54,7 +54,7 @@ in
   options = {
 
     environment.nix = mkOption {
-      default = pkgs.nixUnstable;
+      default = pkgs.nix;
       merge = mergeOneOption;
       description = ''
         This option specifies the Nix package instance to use throughout the system.