diff --git a/source/amend_project/content/index.html.md.erb b/source/amend_project/content/index.html.md.erb
index 9e45821..df32484 100644
--- a/source/amend_project/content/index.html.md.erb
+++ b/source/amend_project/content/index.html.md.erb
@@ -139,5 +139,5 @@ This warning text format is consistent with the [GOV.UK Design System warning te
 Insert the following Ruby code into your content file:
 
 ```ruby
-<%= warning_text('INSERT WARNING TEXT HERE') %>
+<%%= warning_text('INSERT WARNING TEXT HERE') %>
 ```