--- a/src/main/java/edu/vt/middleware/ldap/jaas/LdapGroup.java
+++ b/src/main/java/edu/vt/middleware/ldap/jaas/LdapGroup.java
@@ -15,7 +15,6 @@
 
 import java.io.Serializable;
 import java.security.Principal;
-import java.security.acl.Group;
 import java.util.Collections;
 import java.util.Enumeration;
 import java.util.HashSet;
@@ -28,7 +27,7 @@
  * @author  Middleware Services
  * @version  $Revision: 1330 $ $Date: 2010-05-24 00:10:53 +0200 (Mon, 24 May 2010) $
  */
-public class LdapGroup implements Group, Serializable
+public class LdapGroup implements Principal, Serializable
 {
 
   /** serial version uid. */