diff --git a/modules/system-types/u-boot.nix b/modules/system-types/u-boot.nix
index 1d30625e..71aebd8a 100644
--- a/modules/system-types/u-boot.nix
+++ b/modules/system-types/u-boot.nix
@@ -191,6 +191,7 @@ in
         inherit boot-partition;
         disk-image = withBootloader;
         u-boot = cfg.package;
+        default = system.build.disk-image;
       };
     })
   ];