diff --git a/kdc/kdc_locl.h b/kdc/kdc_locl.h
index 1eeb0ecd3..9313e63de 100644
--- a/kdc/kdc_locl.h
+++ b/kdc/kdc_locl.h
@@ -61,7 +61,8 @@ extern struct timeval _kdc_now;
 krb5_error_code
 _kdc_as_rep(krb5_context context, 
 	    krb5_kdc_configuration *config,
-	    KDC_REQ*, krb5_data*, const char*, struct sockaddr*);
+	    KDC_REQ*, const krb5_data*, krb5_data*, 
+	    const char*, struct sockaddr*);
 
 krb5_kdc_configuration *
 configure(krb5_context context, int argc, char **argv);