diff --git a/build/package/nix/flake.nix b/build/package/nix/flake.nix
index 11bb337751..52ef59cd67 100644
--- a/build/package/nix/flake.nix
+++ b/build/package/nix/flake.nix
@@ -3,12 +3,12 @@
 
     inputs = {};
 
-    outputs = { ... }: {
+    outputs = { nixpkgs, ... }: {
         nixosModules = {
             default = { ... }: {
                 imports = [ ./tgstation-server.nix ];
             };
         };
-        checks.x86_64-linux.package-build = pkgs.callPackage ./package.nix { };
+        checks.x86_64-linux.package-build = nixpkgs.legacyPackages.x86_64-linux.callPackage ./package.nix { };
     };
 }