diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index eaa2c40..7a6ae44 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -12,6 +12,7 @@
 - Put your snippets into corresponding sections.
 - Put the snippet names into the [Table of Contents](README.md#table-of-contents) and link them using relative URLs.
 - Use `###` headers for your snippets.
+- Use [Title Case](https://en.wikipedia.org/wiki/Letter_case#Title_case) for headers.
 - Add some note/description if applicable. People will thank you for that.
 - Be grateful. Indicate a source using this format `[Source](link)` if applicable. 
 - For Apache-related examples, wrap your commands in a `apacheconf` code block.