diff --git a/application/applicationextension.inc.php b/application/applicationextension.inc.php
index 946fc6def..a007a3ab3 100644
--- a/application/applicationextension.inc.php
+++ b/application/applicationextension.inc.php
@@ -335,8 +335,8 @@ abstract class AbstractPreferencesExtension implements iPreferencesExtension
  * A recommended pattern is to cache data by the mean of static members.
  *
  * @api
+ * @deprecated  3.1.0 N°4756 use the new event service instead, see {@see DBObject::FireEvent()} method
  * @package     UIExtensibilityAPI
- * @deprecated
  */
 interface iApplicationUIExtension
 {