diff --git a/hosts/rustboro/default.nix b/hosts/rustboro/default.nix
index a4e8549b..f822f308 100644
--- a/hosts/rustboro/default.nix
+++ b/hosts/rustboro/default.nix
@@ -13,7 +13,7 @@
   # Bootloader.
   boot.loader.grub.enable = true;
   boot.loader.grub.device = "/dev/sda";
-  boot.loader.grub.useOSProber = true;
+  boot.loader.grub.useOSProber = false;
 
   networking.hostName = "rustboro"; # Define your hostname.
   # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.