diff --git a/modules/virtualisation/virtualbox-image.nix b/modules/virtualisation/virtualbox-image.nix
index 9c488b6b0396..f049c5eb348a 100644
--- a/modules/virtualisation/virtualbox-image.nix
+++ b/modules/virtualisation/virtualbox-image.nix
@@ -78,7 +78,7 @@ with pkgs.lib;
     ];
 
   boot.loader.grub.version = 2;
-  boot.loader.grub.device = "/dev/vda";
+  boot.loader.grub.device = "/dev/sda";
 
   services.virtualbox.enable = true;
 }