diff --git a/atlas/templates/atlas/collection_mark_question.html b/atlas/templates/atlas/collection_mark_question.html
index d3ba15be..4148a96d 100644
--- a/atlas/templates/atlas/collection_mark_question.html
+++ b/atlas/templates/atlas/collection_mark_question.html
@@ -45,7 +45,7 @@
                 </span>
             </span>
         {% endfor %}
-            <button type="button" class="btn-close-white text-reset" data-bs-dismiss="offcanvas" aria-label="Close"></button>
+            <button type="button" class="btn-close btn-primary text-reset" data-bs-dismiss="offcanvas" aria-label="Close"></button>
         </div>
         <div class="offcanvas-body">