diff --git a/addons/event/__openerp__.py b/addons/event/__openerp__.py
index 1a7f3ba09c5..040df5ce987 100644
--- a/addons/event/__openerp__.py
+++ b/addons/event/__openerp__.py
@@ -51,7 +51,7 @@ Note that:
         'res_partner_view.xml',
         'email_template.xml',
     ],
-    'demo_xml': ['event_demo.yml'],
+    'demo_xml': ['event_demo.xml'],
     'test': ['test/process/event_draft2done.yml'],
     'css': ['static/src/css/event.css'],
     'installable': True,
diff --git a/addons/event/event_demo.yml b/addons/event/event_demo.xml
similarity index 100%
rename from addons/event/event_demo.yml
rename to addons/event/event_demo.xml