diff --git a/sys/kern/subr_witness.c b/sys/kern/subr_witness.c
index c5d4ae8cb2d1..cf46c245b42d 100644
--- a/sys/kern/subr_witness.c
+++ b/sys/kern/subr_witness.c
@@ -311,6 +311,12 @@ static struct witness_order_list_entry order_lists[] = {
 	{ "slip_mtx", &lock_class_mtx_sleep },
 	{ "slip sc_mtx", &lock_class_mtx_sleep },
 	{ NULL, NULL },
+	/*
+	 * netatalk
+	 */
+	{ "ddp_list_mtx", &lock_class_mtx_sleep },
+	{ "ddp_mtx", &lock_class_mtx_sleep },
+	{ NULL, NULL },
 	/*
 	 * spin locks
 	 */