diff --git a/cluster/hackdoc.toml b/cluster/hackdoc.toml
new file mode 100644
index 0000000..af7f8b8
--- /dev/null
+++ b/cluster/hackdoc.toml
@@ -0,0 +1,5 @@
+[template.default]
+sources = [
+    "//devtools/hackdoc/tpl/base.html",
+    "//cluster/doc/site.html",
+]