diff --git a/antora-playbook.yml b/antora-playbook.yml
index 7a92322a6f..a4728c0500 100644
--- a/antora-playbook.yml
+++ b/antora-playbook.yml
@@ -26,6 +26,6 @@ asciidoc:
   attributes:
     kroki-fetch-diagram: true
     page-pagination: ""
-      #  extensions:
-      #    - asciidoctor-kroki
-      #    - asciidoctor-mathjax
+  extensions:
+    - asciidoctor-kroki
+    - asciidoctor-mathjax