diff --git a/nixos/modules/system/boot/uki.nix b/nixos/modules/system/boot/uki.nix
index ce00ac8e6397..0965b887c12e 100644
--- a/nixos/modules/system/boot/uki.nix
+++ b/nixos/modules/system/boot/uki.nix
@@ -75,6 +75,8 @@ in
         OSRelease = lib.mkOptionDefault "@${config.system.build.etc}/etc/os-release";
         # This is needed for cross compiling.
         EFIArch = lib.mkOptionDefault efiArch;
+      } // lib.optionalAttrs (config.hardware.deviceTree.enable && config.hardware.deviceTree.name != null) {
+        DeviceTree = lib.mkOptionDefault "${config.hardware.deviceTree.package}/${config.hardware.deviceTree.name}";
       };
     };