diff --git a/resources/assets/javascripts/lib/blubber.js b/resources/assets/javascripts/lib/blubber.js
index 3e93985e493ec9878142dcf98ff6c5be4a9e751e..4e724b46cbd0f1cd2c49a691dbb02f0c644420c2 100644
--- a/resources/assets/javascripts/lib/blubber.js
+++ b/resources/assets/javascripts/lib/blubber.js
@@ -47,6 +47,7 @@ const Blubber = {
                 subscribe: follow,
             });
         }).then(() => {
+            elements.attr('aria-pressed', follow ? 'true' : 'false');
             elements.toggleClass('unfollowed', !follow);
         }).finally(() => {
             elements.removeClass('loading');
diff --git a/templates/blubber/global_context.php b/templates/blubber/global_context.php
index 77c4a2905e6a56b15abc188b47ef5c0f92e5aae0..4a524076ed32e84871b7de7f6a08e29f1708ec8b 100644
--- a/templates/blubber/global_context.php
+++ b/templates/blubber/global_context.php
@@ -7,6 +7,8 @@
        onClick="STUDIP.Blubber.followunfollow('global'); return false;"
        class="followunfollow<?= $unfollowed ? " unfollowed" : "" ?>"
        title="<?= _("Benachrichtigungen für diese Konversation abstellen.") ?>"
+       aria-pressed="<?= $unfollowed ? 'false' : 'true' ?>"
+       role="button"
        data-thread_id="global">
         <?= Icon::create("decline")->asImg(20, ['class' => "follow text-bottom"]) ?>
         <?= Icon::create("notification2")->asImg(20, ['class' => "unfollow text-bottom"]) ?>