diff --git a/Formula/kf5-kjs.rb b/Formula/kf5-kjs.rb
index 21d62f2bf77a9d2185eb263ed6a2bbdc1fbb532c..35a5e4755a8c8787449b4370e6d8176dd02282b8 100644
--- a/Formula/kf5-kjs.rb
+++ b/Formula/kf5-kjs.rb
@@ -11,6 +11,8 @@ class Kf5Kjs < Formula
   depends_on "extra-cmake-modules" => [:build, :test]
   depends_on "kdoctools" => :build
   depends_on "ninja" => :build
+  depends_on "docbook" => :build
+  depends_on "docbook-xsl" => :build
 
   depends_on "pcre"
   depends_on "qt@5"