diff --git a/osbase/build/mkimage/def.bzl b/osbase/build/mkimage/def.bzl
index 1663e3d..3f9327b 100644
--- a/osbase/build/mkimage/def.bzl
+++ b/osbase/build/mkimage/def.bzl
@@ -8,12 +8,15 @@
             ctx.file.kernel.path,
             "-system",
             ctx.file.system.path,
+            "-abloader",
+            ctx.file.abloader.path,
             "-out",
             img_file.path,
         ],
         inputs = [
             ctx.file.kernel,
             ctx.file.system,
+            ctx.file.abloader,
         ],
         outputs = [img_file],
     )
@@ -23,7 +26,7 @@
 node_image = rule(
     implementation = _node_image_impl,
     doc = """
-        Build a disk image from an EFI kernel payload and system partition
+        Build a disk image from an EFI kernel payload, ABLoader and system partition
         contents. See //osbase/build/mkimage for more information.
     """,
     attrs = {
@@ -37,6 +40,11 @@
             mandatory = True,
             allow_single_file = True,
         ),
+        "abloader": attr.label(
+            doc = "ABLoader binary",
+            mandatory = True,
+            allow_single_file = True,
+        ),
         "_mkimage": attr.label(
             doc = "The mkimage executable.",
             default = "//osbase/build/mkimage",