diff --git a/addons/event/event_view.xml b/addons/event/event_view.xml
index 51f848c4706..ede9f0f3788 100644
--- a/addons/event/event_view.xml
+++ b/addons/event/event_view.xml
@@ -290,7 +290,7 @@
                             <t t-if="record.is_subscribed.raw_value">
                               <button type="object" name="unsubscribe_to_event" class="oe_unsubscribe_button ">
                                 <span>Subscribed</span>
-                                <span class="unsubscribe">Unsubscribe</span>
+                                <span class="oe_unsubscribe">Unsubscribe</span>
                               </button>
                             </t>
                         </div>