diff --git a/lib/krb5/get_in_tkt.c b/lib/krb5/get_in_tkt.c
index 41618b961..c4b16c9a2 100644
--- a/lib/krb5/get_in_tkt.c
+++ b/lib/krb5/get_in_tkt.c
@@ -510,6 +510,7 @@ krb5_get_in_cred(krb5_context context,
 				   NULL,
 				   nonce,
 				   flags,
+				   NULL,
 				   decrypt_proc,
 				   decryptarg);
     }