diff --git a/webcomponents/tool/src/main/frontend/packages/sakai-grader/src/sakai-grader-rendering-mixin.js b/webcomponents/tool/src/main/frontend/packages/sakai-grader/src/sakai-grader-rendering-mixin.js
index 9f22ff2e8cef..ba617892319a 100644
--- a/webcomponents/tool/src/main/frontend/packages/sakai-grader/src/sakai-grader-rendering-mixin.js
+++ b/webcomponents/tool/src/main/frontend/packages/sakai-grader/src/sakai-grader-rendering-mixin.js
@@ -556,7 +556,7 @@ export const graderRenderingMixin = Base => class extends Base {
                   ${this._submission.feedbackAttachments.map(att => html`
                     <div class="feedback-attachments-row">
                       <div class="feedback-attachment">
-                        <a href="/access${att.ref}" title="${this.i18n.feedback_attachment_tooltip}">
+                        <a href="${att.url}" title="${this.i18n.feedback_attachment_tooltip}">
                           <span>${att.name}</span>
                         </a>
                       </div>