diff --git a/release.nix b/release.nix
index 2a78031f9a9..b66c07a037b 100644
--- a/release.nix
+++ b/release.nix
@@ -142,7 +142,10 @@ let
         pkgs = import <nixpkgs> {};
         options =
           (import lib/eval-config.nix {
-            modules = [ { fileSystems = []; } ];
+            modules = [
+              { fileSystems = [];
+                boot.loader.grub.device = "/dev/sda";
+              } ];
           }).options;
         revision = toString nixosSrc.rev;
       }).manual;