diff --git a/modules/nix/nix-darwin.nix b/modules/nix/nix-darwin.nix
index 677acbe5..a22e3e03 100644
--- a/modules/nix/nix-darwin.nix
+++ b/modules/nix/nix-darwin.nix
@@ -5,6 +5,7 @@ let
     inherit (config.system) profile;
     inherit (config.environment) systemPath;
     nixPath = lib.optionalString config.nix.enable (lib.concatStringsSep ":" config.nix.nixPath);
+    nixPackage = if config.nix.enable then config.nix.package else null;
   };
 
   darwin-uninstaller = pkgs.callPackage ../../pkgs/darwin-uninstaller { };
diff --git a/pkgs/nix-tools/default.nix b/pkgs/nix-tools/default.nix
index 8d6b89b7..a5414cbd 100644
--- a/pkgs/nix-tools/default.nix
+++ b/pkgs/nix-tools/default.nix
@@ -21,6 +21,7 @@
   "/usr/sbin"
   "/sbin"
 ]
+, nixPackage ? null
 , # This should be kept in sync with the default `nix.nixPath`.
   nixPath ? lib.concatStringsSep ":" [
   "darwin-config=/etc/nix-darwin/configuration.nix"
@@ -29,7 +30,7 @@
 }:
 
 let
-  extraPath = lib.makeBinPath [ coreutils jq git ];
+  extraPath = lib.makeBinPath [ coreutils jq git nixPackage ];
 
   writeProgram = name: env: src:
     substituteAll ({