diff --git a/bookwyrm/templates/ostatus/remote_follow_button.html b/bookwyrm/templates/ostatus/remote_follow_button.html
index 2848fde0..fc869229 100644
--- a/bookwyrm/templates/ostatus/remote_follow_button.html
+++ b/bookwyrm/templates/ostatus/remote_follow_button.html
@@ -4,9 +4,12 @@
 
 <div class="field mb-0">
     <div class="control">
-        <a class="button is-small is-link" href="{% url 'remote-follow-page' %}?user={{ user.username }}" target="_blank" rel="noopener noreferrer" onclick="BookWyrm.displayPopUp(`{% url 'remote-follow-page' %}?user={{ user.username }}`, `remoteFollow`); return false">
+        <a class="button is-small is-link" href="{% url 'remote-follow-page' %}?user={{ user.username }}" target="_blank" rel="noopener noreferrer" onclick="BookWyrm.displayPopUp(`{% url 'remote-follow-page' %}?user={{ user.username }}`, `remoteFollow`); return false;" aria-describedby="remote_follow_warning">
             {% blocktrans with username=user.localname %}Follow on Fediverse{% endblocktrans %}
         </a>
     </div>
+    <p id="remote_follow_warning" class="mt-1 is-size-7 has-text-weight-light">
+        {% trans 'This link opens in a pop-up window' %}
+    </p>
 </div>
 {% endif %}