diff --git a/config.toml b/config.toml
index 97bf6f2..bfd4c7c 100644
--- a/config.toml
+++ b/config.toml
@@ -3,9 +3,11 @@ title = "M-Labs"
 description = "Open tools for open physics."
 
 compile_sass = true
-highlight_code = true
 insert_anchor_links = true
 build_search_index = false
 
+[markdown]
+highlight_code = true
+
 [extra]
 author = "M-Labs"