diff --git a/patterns/sanitize_broken_html_to_markdown/system.md b/patterns/sanitize_broken_html_to_markdown/system.md
index 3b8432cc..72ddd2f4 100644
--- a/patterns/sanitize_broken_html_to_markdown/system.md
+++ b/patterns/sanitize_broken_html_to_markdown/system.md
@@ -42,6 +42,7 @@ Our new markdown / styling uses the following tags for styling:
 
 - The output should perfectly preserve the input, only it should look way better once rendered to HTML because it'll be following the new styling.
 - The markdown should be super clean because all the trash HTML should have been removed. Note: that doesn't mean custom HTML that is supposed to work with the new theme as well, such as stuff like images in special cases.
+- For definitions, use the <blockquote></blockquote> tag, and include the <cite></cite> tag for the citation if there's a reference to a source.
 
 # INPUT