diff --git a/app/templates/views/edit-letter-template.html b/app/templates/views/edit-letter-template.html
index f3a7e623b..28217c529 100644
--- a/app/templates/views/edit-letter-template.html
+++ b/app/templates/views/edit-letter-template.html
@@ -26,7 +26,7 @@
             delete_link_text='Delete this template'
           ) }}
         </div>
-        <aside class="column-whole">
+        <aside class="column-three-quarters">
           {% include "partials/templates/guidance-formatting-letters.html" %}
           {% include "partials/templates/guidance-personalisation.html" %}
           {% include "partials/templates/guidance-contact-block.html" %}