diff --git a/mkdocs-source.yml b/mkdocs-source.yml
index 1550310..f210e13 100644
--- a/mkdocs-source.yml
+++ b/mkdocs-source.yml
@@ -55,8 +55,8 @@ markdown_extensions:
   - pymdownx.highlight:
       anchor_linenums: false
   - pymdownx.inlinehilite
-  # - codehilite:
-  #    guess_lang: false
+  - codehilite:
+      guess_lang: true
 
   # pip install mdx_truly_sane_lists
   - mdx_truly_sane_lists
@@ -67,6 +67,8 @@ markdown_extensions:
       #
   # pip install pymdown-extensions
   - pymdownx.superfences:
+  # - pymdownx.arithmatex:
+  #     generic: true
 
 # plugins: []
 plugins: