diff --git a/document_page/views/document_page_category.xml b/document_page/views/document_page_category.xml
index 83e7f242..5988951d 100755
--- a/document_page/views/document_page_category.xml
+++ b/document_page/views/document_page_category.xml
@@ -31,6 +31,7 @@
                 </sheet>
                 <div class="oe_chatter">
                     <field name="message_follower_ids" widget="mail_followers"/>
+                    <field name="activity_ids" widget="mail_activity"/>
                     <field name="message_ids" widget="mail_thread"/>
                 </div>
             </form>