diff --git a/packages/core/admin/admin/src/content-manager/pages/App/index.js b/packages/core/admin/admin/src/content-manager/pages/App/index.js
index c22871f451..2105c58078 100644
--- a/packages/core/admin/admin/src/content-manager/pages/App/index.js
+++ b/packages/core/admin/admin/src/content-manager/pages/App/index.js
@@ -28,7 +28,7 @@ const App = () => {
   // Check with @mfrachet if ok with a11y
   if (status === 'loading') {
     return (
-      <Main labelledBy="title">
+      <Main labelledBy="title" aria-busy="true">
         <HeaderLayout
           id="title"
           title={formatMessage({