diff --git a/core/src/main/java/hudson/security/LDAPSecurityRealm.java b/core/src/main/java/hudson/security/LDAPSecurityRealm.java
index ebb6448..f9f9c1d 100644
--- a/core/src/main/java/hudson/security/LDAPSecurityRealm.java
+++ b/core/src/main/java/hudson/security/LDAPSecurityRealm.java
@@ -44,4 +44,8 @@ public class LDAPSecurityRealm extends SecurityRealm {
             return "LDAP";
         }
     }
+
+    static {
+        LIST.add(DESCRIPTOR);
+    }
 }