diff --git a/conf.py b/conf.py
index 25a5f8e..55cf905 100644
--- a/conf.py
+++ b/conf.py
@@ -75,3 +75,7 @@
         {"data-domain": "cutter.ncag.info", "defer": "defer"},
     ),
 ]
+
+# -- Options for LaTeX output ------------------------------------------------
+
+latex_engine = "lualatex"