diff --git a/machines/stellio/configuration.nix b/machines/stellio/configuration.nix
index f932172..ad47162 100644
--- a/machines/stellio/configuration.nix
+++ b/machines/stellio/configuration.nix
@@ -2,20 +2,30 @@
 {
   imports = [
     inputs.matthew-hardware.nixosModules.mt7986a-glinet-gl-mt6000
-
   ];
 
-  hardware.mt7986a-glinet-gl-mt6000.enable = true;
-  hardware.mt7986a-glinet-gl-mt6000.zealous = true;
-  hardware.mt7986a-glinet-gl-mt6000.image.repart.enable = true;
+  # matthew-hardware's common/generic-uefi-image.nix still sets
+  # `image.repart.enable = true`; nixpkgs removed that option (importing
+  # image/repart.nix now always defines system.build.image). Declare it so the
+  # definition has somewhere to land. Drop once upstream stops setting it.
+  options.image.repart.enable = lib.mkOption {
+    type = lib.types.bool;
+    default = true;
+    internal = true;
+  };
 
-  nixpkgs.hostPlatform.system = "aarch64-linux";
-  nixpkgs.buildPlatform.system = "x86_64-linux";
+  config = {
+    hardware.mt7986a-glinet-gl-mt6000.enable = true;
+    hardware.mt7986a-glinet-gl-mt6000.zealous = true;
+    hardware.mt7986a-glinet-gl-mt6000.image.repart.enable = true;
 
-  system.stateVersion = "26.11";
-  clan.core.sops.defaultGroups = [ "admins" ];
+    nixpkgs.hostPlatform.system = "aarch64-linux";
+    nixpkgs.buildPlatform.system = "x86_64-linux";
 
-  clan.core.settings.name = "stellio";
-  clan.core.settings.machine.description = "Flint-2 router";
+    system.stateVersion = "26.11";
+    clan.core.sops.defaultGroups = [ "admins" ];
 
+    clan.core.settings.name = "stellio";
+    clan.core.settings.machine.description = "Flint-2 router";
+  };
 }