diff --git a/ChangeLog b/ChangeLog
index 2c8695d19f..e7a2187843 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2005-12-08  Jakub Jelinek  <jakub@redhat.com>
+
+	* nis/ypclnt.c (yp_update): Before trying default authentication,
+	free DES descriptor.
+
 2005-12-07  Jakub Jelinek  <jakub@redhat.com>
 
 	* nis/nis_table.c (nis_list): Fix memory handling in error case.
diff --git a/nis/ypclnt.c b/nis/ypclnt.c
index 5fc931c459..66095667c6 100644
--- a/nis/ypclnt.c
+++ b/nis/ypclnt.c
@@ -1004,6 +1004,7 @@ again:
     {
       if (clnt->cl_auth->ah_cred.oa_flavor == AUTH_DES)
 	{
+	  auth_destroy (clnt->cl_auth);
 	  clnt->cl_auth = authunix_create_default ();
 	  goto again;
 	}