diff --git a/core/src/main/java/org/springframework/ldap/repository/config/LdapRepositoryConfigurationExtension.java b/core/src/main/java/org/springframework/ldap/repository/config/LdapRepositoryConfigurationExtension.java
index 727c5725..9a61aacb 100644
--- a/core/src/main/java/org/springframework/ldap/repository/config/LdapRepositoryConfigurationExtension.java
+++ b/core/src/main/java/org/springframework/ldap/repository/config/LdapRepositoryConfigurationExtension.java
@@ -25,6 +25,7 @@ import org.w3c.dom.Element;
 
 /**
  * @author Mattias Hellborg Arthursson
+ * @since 2.0
  */
 public class LdapRepositoryConfigurationExtension extends RepositoryConfigurationExtensionSupport {