diff --git a/app/templates/views/guidance/upload-a-letter.html b/app/templates/views/guidance/upload-a-letter.html
index f4a3d5950..7d62565bb 100644
--- a/app/templates/views/guidance/upload-a-letter.html
+++ b/app/templates/views/guidance/upload-a-letter.html
@@ -21,7 +21,7 @@
     <li>Select <b class="govuk-!-font-weight-bold">Choose file</b>.</li>
   </ol>
 
-  <h2 class="heading-medium">Letter specification</h2>
+  <h2 class="heading-medium" id="letter-specification">Letter specification</h2>
 
   <p>Your file must be:</p>