diff --git a/scm-core/src/main/java/sonia/scm/user/UserManagerDecorator.java b/scm-core/src/main/java/sonia/scm/user/UserManagerDecorator.java
index e2006f0dff..7f7b26be2a 100644
--- a/scm-core/src/main/java/sonia/scm/user/UserManagerDecorator.java
+++ b/scm-core/src/main/java/sonia/scm/user/UserManagerDecorator.java
@@ -34,6 +34,7 @@ package sonia.scm.user;
 //~--- non-JDK imports --------------------------------------------------------
 
 import sonia.scm.ManagerDecorator;
+import sonia.scm.plugin.ExtensionPoint;
 import sonia.scm.search.SearchRequest;
 
 //~--- JDK imports ------------------------------------------------------------
@@ -46,6 +47,7 @@ import java.util.Collection;
  * @author Sebastian Sdorra
  * @since 1.23
  */
+@ExtensionPoint
 public class UserManagerDecorator extends ManagerDecorator<User, UserException>
   implements UserManager
 {